phyics

Suppose a runner completes one lap around a 400-m track in a time of 50 s. Calculate the average velocity of the runner.
Express your answer in meters per second to the nearest integer.

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  1. zero
    distance = 400
    displacement = 0
    (came back to the same spot)

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  2. and if you are Rachel, that is a very different question from the earlier one.

    speed = distance/time
    velocity = displacement /time

    for speed you need a speedometer
    for velocity you need a speedometer and a compass

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  3. 0/400

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  4. 8m/s

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  5. sq

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