Formula for average speed how to#
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Formula for average speed pdf#
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What is his average speed for the whole journey? When the two objects are moving in opposite directions, the relative speed is computed by adding the two speeds.Įxample: A person goes from A to B at the speed of 40 kmph and comes back at the speed of 60 kmph. When two objects are moving in the same direction, the relative speed is calculated as their difference. Relative speed is defined as the speed of a moving object with respect to another. So, when speed increases, time decreases and vice versa. Speed is inversely proportional to the time taken when the distance traveled is constant. However, you need to make sure about the correct usage of units while using the above formulas. Using this formula, all basic problems can be handled. When time taken is constant: Average speed = (x + y)/2 Where, x and y are the two speeds at which we traveled for the same time.
When the distance is constant: Average speed = 2xy/x+y Where, x and y are the two speeds at which the same distance has been covered. Average speed = Total Distance covered/ Total Time Taken
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