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20 November, 14:08

A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration. the acceleration of the car is:

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  1. 20 November, 14:19
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    We are asked to find the acceleration of the car:

    Formula: s = 1/2 a t^2

    20 = 1/2 a (4) ^2

    a = 40 / 16

    a = 5 / 2 m/s^2

    = 2.5 m/s^2

    The acceleration of the car is 2.5 m/s^2
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