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13 April, 05:37

A ball is rolled at a velocity of 25 m/sec. after 13.5 seconds, it comes to a stop. What is the acceleration of the ball?

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  1. 13 April, 06:05
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    The answer to your question is a = - 1.85 m/s² the acceleration is negative because it is coming to stop.

    Explanation:

    Data

    vo = 25 m/s

    t = 13.5 s

    a=?

    vf = 0 m/s

    Formula

    vf = vo + at

    solve for a

    a = (vf - vo) / t

    Substitution

    a = (0 - 25) / 13.5

    Simplification

    a = - 25/13.5

    Result

    a = - 1.85 m/s²
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