adam is travelling at a speed of 48 kmph

Convert 48 Kilometers per Hour to Miles per Hour

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Speed Distance Time Calculator

Please enter the speed and distance values to calculate the travel time in hours, minutes and seconds.

About Speed Distance Time Calculator

This online calculator tool can be a great help for calculating time basing on such physical concepts as speed and distance. Therefore, in order to calculate the time, both distance and speed parameters must be entered. For the speed , you need to enter its value and select speed unit by using the scroll down menu in the calculator. For distance , you should enter its value and also select the proper length measurement unit from the scroll down menu. You'll receive the result in standard time format (HH:MM:SS).

Time Speed Distance Formula

Distance is equal to speed × time. Time is equal Distance/Speed.

Calculate Time from Distance and Speed Examples

Recent comments.

Going 65mph for 30 seconds how far would you get? None of these formulas work without distance. How would I find the distance from time and speed?

if i travel 0.01 inches per second and I need to travel 999999999 kilometers, it takes 556722071 Days and 20:24:34 WHAT

4. How long does it take to do 100m at 3kph ? No I thought you would just divide 100 ÷ 3 = which 33.33333 so 33 seconds or so I thought. But apparently it 2 mins.

This was the best tool ive ever used that was on point from speed to distance and time Calculator

This was somewhat unhelpful as I know the time and distance, but not the speed. Would be helpful if this calculator also could solve the other two as well.

If a total distance of 2 miles is driven, with the first mile being driven at a speed of 15mph, and the second mile driven at a speed of 45 mph: What is the average speed of the full 2 mile trip?

hi sorry im newly introduced to this and i dont understand how to use it but in need to find the distance if i was travelling in the average speed of 15km/hr in 4 hours how far would i travel

D= 697 km T= 8 hours and 12 minutes S= ?

if a train is going 130 miles in 50 minutes, how fast is it going in miles per hour ??

whats the speed if you travel 2000 miles in 20hours?

How long would it take me to drive to Mars at 100 miles per hour and how much gas would I use in a 2000 Ford Mustang000000/ Also, how much CO2 would I release into the air?

great tool helped me alot

A car can go from rest to 45 km/hr in 5 seconds. What is its acceleration?

Guys how much time will a cyclist take to cover 132 METRES With a speed of 8 km/ph

@Mike Depends on how fast that actually is. For every 10 mph above 60, but below 120, you save 5 seconds a mile. But between the 30-60 area, every ten saves 10 seconds a mile (if I am remembering correctly), and every 10 between 15-30 is 20 seconds. Realistically, it isn't likely isn't worth it, unless it is a relatively straight drive with no stops, in which case you will likely go up a gear for the drive and thus improve gas efficiency for the trip. Only really saves time if it is over long trips 300+ miles (in which case, assuming you were on the interstate) that 5 seconds a mile would save you 25 minutes from the drive, making it go from 4h35m to 4h10m. For me, I have family across the U.S., so family visits are usually 900-1400 miles. Even only driving 5 above usually saves me 90-150 minutes or so (since I often have stretches where I drive on US highways which have 55 mph speed limits)

I would like to know if driving fast is worth it for short trips. If I drive 10 MPH over the speed limit for 10 miles, how much time do i save ? Is there an equation for that ?

it helps me in lot of stuff

awesome, helped me notice how long my taiga (electric seedoo) is going to last.

Very good! This helped me a lot.

Kinetic Energy Calculator

Kinetic energy definition, what is kinetic energy, kinetic energy formula, kinetic energy units, potential and kinetic energy, the work-energy theorem, the relation between dynamic pressure and kinetic energy, kinetic energy examples.

This kinetic energy calculator is a tool that helps you assess the energy of motion. It is based on the kinetic energy formula, which applies to every object in a vertical or horizontal motion.

The following article will explain:

• What is kinetic energy;
• How the kinetic energy formula is used;
• The definition of kinetic energy;
• What are some common kinetic energy units;
• What is the difference between potential and kinetic energy;
• How the work-energy theorem can be applied; and
• How the dynamic pressure and the kinetic energy equations relate to each other.

The encyclopedia provides the following definition of kinetic energy:

The kinetic energy of an object is the energy it possesses due to its motion . We define it as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains its kinetic energy unless its speed changes . The same amount of work is done by the body in decelerating from its current speed to a state of rest.

Kinetic energy is the energy of an object in motion. It provides information about how the mass of an object influences its velocity. Let's take an example. If you put the same engine into a lorry and a slick car, the former cannot achieve the same speed as the latter because of its mass. Another example of kinetic energy is the human punch force, where the energy accumulates in the body and transfers through the punch. You can easily find it out by using our kinetic energy calculator.

The kinetic energy formula defines the relationship between the mass of an object and its velocity. The kinetic energy KE equation is as follows:

KE = 0.5 × m × v²

• m — Mass; and
• v — Velocity.

With the kinetic energy formula, you can estimate how much energy is needed to move an object. The same energy could be used to decelerate the object but keep in mind that velocity is squared. This means that even a small increase in speed changes the kinetic energy by a relatively high amount.

How about you give our kinetic energy calculator a try? This tool does any and every calculation for you after typing the mass and velocity of an object. It even works in reverse, just input any two known variables, and you will receive the third! If you don't know the object's speed, you can easily calculate it with our velocity calculator .

You should be aware, however, that this formula doesn't take into account relativistic effects , which become noticeable at higher speeds. If an object is moving faster than 1% of the speed of light (approximately 3,000 km/s, or 3,000,000 m/s), you should use our relativistic kinetic energy calculator .

The units of kinetic energy are precisely the same as for any other type of energy. The most popular and commonly used kinetic energy units are:

• Joule (J), equivalent to kg·m²/s² – SI unit;
• Foot-pound (ft·lb) – imperial unit;
• Electronvolt (eV);
• Calorie (cal); and
• Watt-hour (Wh).

We can easily convert all of these kinetic energy units into one another with the following ratios:

1 J = 0.7376 ft·lb = 6.242×10¹⁸ eV = 0.239 cal = 2.778×10⁻⁴ Wh

As you can see, depending on the scale, they may differ by a significant number of orders of magnitude, so it's convenient to use scientific notation or express them with some prefix like kilo- (kcal, kWh), Mega- (MeV), etc. Anyway, you don't need to worry about the units while using our kinetic energy calculator; you can choose whichever you like by clicking on the units, and the value will be immediately converted.

Potential energy refers to the gravitational pull exerted on an object relative to how far it has to fall. When the object gains altitude, its potential energy increases. If you want to check what potential energy is and how to calculate it, use our potential energy calculator .

It turns out that kinetic energy and the amount of work done in the system are strictly correlated, and the work-energy theorem can describe their relationship. It states that we can convert the work done by all external forces into a change of kinetic energy:

W = ΔKE = KE₂ – KE₁

Actually, there are several types of kinetic energies. We can distinguish:

Translational kinetic energy — the most well-known type. It's related to the motion of an object traveling in a particular direction and the distance it covers in a given time. This is the kind of energy that you can estimate with this kinetic energy calculator.

Rotational kinetic energy — as the name suggests, it considers a body's motion around an axis. Check Omni's rotational kinetic energy calculator to learn the exact formula.

Vibrational kinetic energy — can be visualized as when a particle moves back and forth around some equilibrium point, approximated by harmonic motion. Depending on the structure, it can be shown as stretching, twisting, or bending.

At the microscopic scale, all of these kinetic energy examples are manifestations of thermal energy, which increases as the temperature rises.

The expression of the dynamic pressure (caused by fluid flowing) is the following:

p = ρ × v² / 2

It looks very similar to the kinetic energy equation because we replace mass with density, which isn't coincidental. The other name for dynamic pressure is kinetic energy per unit volume ; analogically, density is the mass contained in a particular volume. With just a pinch of imagination, you can use our kinetic energy calculator to estimate the dynamic pressure of a given fluid. If you replace mass in kg with density in kg/m³ , then you can think about the result in J as the dynamic pressure in Pa .

You're sitting in class, and your teacher tells you that the kinetic energy of an object equals 1 J. What do you think — is that a lot, or not really? The key information is what kind of object we are talking about. Let's take a look at some computational kinetic energy examples to get to grips with the various orders of magnitude:

Some of the highest energy particles produced by physicists (e.g., protons in Large Hadron Collider, LHC) reach the kinetic energy of a few TeV. It is said to be comparable to the kinetic energy of a mosquito. It's impressive when you realize the enormous number of molecules in one insect. However, if we work out the value in joules, then the outcome is in the order of 1 μJ . Based on that, an individual particle with the kinetic energy of 1 J is extraordinarily high-energy and will surely not be produced by humanity any time soon.

Let's consider a bullet of mass 5 g , traveling at a speed of 1 km/s . Its kinetic energy equals 2,500 J , way above 1 J because of the considerable velocity. That's the reason why bullets cause a lot of damage while hitting targets. Use the kinetic energy calculator to find out how fast the same bullet will have to be traveling at to get its energy to 1 J . It's a velocity of about 20 m/s . Well, it will still hurt when it impacts a body, but it definitely won't cause anything worse than a bruise.

The ship weighs 50,000 tons and can move at the speed of 10 knots . We can always use speed converter to find that it's around 5.1 m/s . Its kinetic energy is then roughly 661 MJ . That number is mainly a consequence of its impressive mass.

Kinetic energy can be defined as the energy possessed by an object or a body while in motion . Kinetic energy depends on two properties: mass and the velocity of the object.

What is the formula for calculating kinetic energy?

The formula to calculate the kinetic energy of an object with mass m and traveling at velocity v is:

How do I calculate kinetic energy?

To calculate kinetic energy:

• Find the square of the velocity of the object.
• Multiply this square by the mass of the object.
• Divide the product by 2 — the result is the kinetic energy of the object.

How much is the kinetic energy of a cricket ball travelling at 90 miles an hour?

An average cricket ball weighs 165 g . Therefore, the kinetic energy of the cricket ball is KE = 0.5 × m × v² = 133.5 J .

What is the kinetic energy of football during a field goal kick?

A 450 g or ~1 lb football traveling towards the field goal at about 38.4 m/s or 126 ft/s has a kinetic energy of 331.7 J .

Car crash force

Coefficient of discharge, reverberation time, schwarzschild radius.

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Average Speed Calculator

Use this speed calculator to easily calculate the average speed of a vehicle: car, bus, train, bike, motorcycle, plane etc. with a given distance and travel time. Returns miles per hour, km per hour, meters per second, etc.

Related calculators

• Average Speed formula
• How to calculate the average speed of a car?
• Finding average speed examples
• Average speed vs Average velocity

    Average Speed formula

The average speed calculation is simple: given the distance travelled and the time it took to cover that distance, you can calculate your speed using this formula:

Speed = Distance / Time

The metric unit of the result will depend on the units you put in. For example, if you measured distance in meters and time in seconds, your output from the average speed calculator would be ft/s. If distance was measured in miles and time in hours, then output will be in miles per hour (mph, mi/h), and so on for km/h, m/s, etc. - all supported by our tool.

    How to calculate the average speed of a car?

Let us say that you travelled a certain distance with your car and want to calculate its average speed. The easiest way to do that would be by using the speed calculator above, but if you prefer, you can also do the math yourself. Either way, one needs to know the distance. If you have noted the distance on your odometer then you can use that number. Other options are to use a map (e.g. Google Maps) and measure the distance travelled based on your actual path (not via a straight line, unless you travelled by air in which case that would be a good approximation), or to use a GPS reading if you used navigation during the whole trip. Then you need to know the travel time. Make sure to subtract any rests or stops made from the total trip duration.

As you can see, to work out your speed in km/h or mph just apply the speed formula with the relevant units for distance and time. This is how to calculate average speed of a car, bike, boat, or any other vehicle or object.

    Finding average speed examples

Example 1: Using the equation above, find the speed of a train which travelled 120 miles in 2 hours and 10 minutes while making four stops, each lasting approximately 2.5 minutes. First, subtract the time spent at the train stops: 2.5 x 4 = 10 minutes. 2:10 minus 10 minutes leaves 2 hours of travel time. Then, apply the avg speed formula to get 120 miles / 2 hours = 60 mph (miles per hour).

Example 2: A cyclist travels to and from work, covering 10 km each way. It took him 25 minutes on the way to work and 35 minutes on the way back. What is the cyclist's average speed? First, add up the time to get 1 hour total. Also add up the distance: 5 + 5 = 10 kilometers. Finally, replace in the formula to get 10 / 1 = 10 km/h (kilometers per hour) on average in total.

    Average speed vs Average velocity

Average speed (what this calculator computes) and average velocity are not necessarily the same thing though they may coincide in certain scenarios. This is basic physics, but a lot of people find it confusing. Here are the differences in short.

Speed is a scalar value whereas velocity is the magnitude of a vector. Speed does not indicate direction whereas velocity does. The two coincide only when the journey from the start point to the end point happens on a straight line, such as in a drag race. If the movement path is not a straight line then the average velocity will be smaller than the mean speed.

Cite this calculator & page

If you'd like to cite this online calculator resource and information as provided on the page, you can use the following citation: Georgiev G.Z., "Average Speed Calculator" , [online] Available at: https://www.gigacalculator.com/calculators/average-speed-calculator.php URL [Accessed Date: 10 Apr, 2024].

     Transportation calculators

Snapsolve any problem by taking a picture. Try it in the Numerade app?

A train travelling at 48 kmph completely crosses another train having half its length and travelling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds. The length of the platform is 400 m 600 m 560 m 450 m

The correct option is a 400 m let the length of the first train be x metres. then, the length of the second train is ( x 2 ) metres. relative speed = ( 48 + 42 ) k m p h = ( 90 × 5 18 ) m / s e c = 25 m / s e c ∴ [ x + ( x / 2 ) ] 25 = 12 or 3 x 2 = 300 or x = 200 ∴ length of first train = 200 m let the length of platform be y metres. speed of the first train = ( 45 × 5 18 ) m / s e c = 40 3 m / s e c ∴ ( 200 + y ) × 3 40 = 45 ⇒ 600 + 3 y = 1800 ⇒ y = 400 m.

Model 2 Train Vs Train in opposite direction Section-Wise Topic Notes With Detailed Explanation And Example Questions

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The following question based on trains topic of quantitative aptitude

The correct answers to the above question in:

Answer: (c)

Let the length of the train travelling at 48 kmph be x metres.

Let the length of the platform be y metres.

Relative speed of train

= (48 + 42) kmph

= ${90 × 5}/18$ m./sec. = 25 m./sec.

and 48 kmph = ${48 × 5}/18 = 40/3$ m./sec.

According to the question,

${x + {x/2}}/25$ = 12

${3x}/{2 × 25}$ =12

3x = 2 × 12 × 25 = 600

Also, ${200 + y}/{40/3}$ = 45

600 + 3y = 40 × 45

3y = 1800 - 600 = 1200

y = $1200/3$ = 400 m.

Practice trains (Model 2 Train Vs Train in opposite direction) Online Quiz

Discuss form, read more trains in opposite direction based quantitative aptitude questions and answers.

Question : 1

P and Q starting simultaneously from two different places proceed towards each other at a speed of 20 km/hour and 30 km/hour respectively. By the time they meet each other. Q has covered 36 km more than that of P. The distance (in km.) between the two places is

Answer: (b)

Let P and Q meet after t hours.

Distance = speed × time

30t - 20t = 36

10t = 36 ⇒ t = $36/10$ = 3.6 hours

Distance between P and Q

= 30t + 20t

= 50t = (50 × 3.6) km. = 180 km.

Using Rule 13, From stations A and B, two trains start travelling towards each other at speeds a and b, respectively. When they meet each other, it was found that one train covers distance d more than that of another train. The distance between stations A and B is given as $({a + b}/{a - b}) × d$

Here, a = 30, b = 20, d = 36

Required distance

= $({a + b}/{a - b}) × d$

= $({30 + 20}/{30 - 20}) ×$ 36

= $50/10 × 36$ = 180 km

Question : 2

Two trains start at the same time from Aligarh and Delhi and proceed towards each other at the rate of 14 km and 21 km per hour respectively. When they meet, it is found that one train has travelled 70 km more than the other. The distance between two stations is

Answer: (d)

Let the trains meet each other after t hours.

Distance = Speed × Time

21t - 14t = 70

7t = 70 ⇒ t = $70/7$ = 10 hours

= 21t + 14t = 35t = 35 × 10 = 350 km.

Using Rule 13,

Here, a = 21, b = 14, d = 70

= $({21 + 14}/{21 - 14}) × 70$

= $35/7 × 70$ = 350 km.

Question : 3

Two trains of lengths 150m and 180m respectively are running in opposite directions on parallel tracks. If their speeds be 50 km/ hr and 58 km/hr respectively, in what time will they cross each other?

a) 15 seconds

b) 30 seconds

c) 11 seconds

d) 22 seconds

Using Rule 3,

Relative speed = (50 + 58) kmph

= $(108 × 5/18)$ m/sec. = 30 m/sec

Required time

= $\text"Total length of trains"/ \text"Relative speed"$

= $({150 +180}/30)$ seconds

= $(330/30)$ seconds = 11 seconds

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A train travelling with a speed of 48 kmph and of length 300 m pa

Please scroll down to see the correct answer and solution guide.

Right Answer is: C

Speed of the train = 48 kmph

Length of train = 300 m

Time taken by train to pass the man = 27 s

Relative speed  \(= \frac{{{\rm{Length\;of\;train\;}}}}{{{\rm{Time\;taken\;by\;train\;to\;pass\;the\;man}}}} = \frac{{300}}{{27}} = \frac{{100}}{9}\)  m/s

Relative speed \(= \frac{{100}}{9} \times \frac{{18}}{5} = 40\)  kmph

Since, they travel in the same direction

Relative speed = Speed of train – Speed of man

Related Questions 48 किमी प्रति घंटे की गति से यात्रा करने वाली ट्रेन जिसकी लंबाई 300 मी The speed of a train is 72 km/hr and its length is 200 meters. What wi ट्रेन की गति 72 किमी/घंटा है और इसकी लंबाई 200 मीटर है। एक खम्भे पार क A bus moves at a speed of 84 km/hr after repairing and moves at a spee