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7 June, 11:03

Two runners start a race. After 2 seconds, they both have the same velocity. If they both started at the same time, how do their average accelerations compare?

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  1. 7 June, 12:37
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    let each runner starts from rest

    v₀ = initial velocity of each runner = 0 m/s

    t = time of travel = 2 sec =

    a = average acceleration

    average acceleration is given as

    a = (v - v₀) / t

    inserting the values

    a = (v - 0) / t

    a = v/t

    since each runner gains equal amount of speed in given time interval of "t". hence the average acceleration of each runner is same.
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