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6 August, 15:49

A car takes 10 s to go from v = 0 m/s to v = 25 m/s at constant acceleration. If you wish to find the distance traveled using the equation d = 1/2at2, what value should you use for a?

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  1. 6 August, 17:21
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    Initial velocity (u) = 0 m/s

    Final velocity (v) = 25 m/s

    time taken (t) = 10s

    acceleration (a) = ?

    Now,

    Acceleration is rate of change of velocity, so formula is

    a = (v - u) / t

    a = (25 - 10) / 10

    a = 15/10

    a = 1.5 m / (s^2)

    Use this value of a.
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