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30 March, 10:07

A 60.0 kg soccer player kicks a 0.4000 kg stationary soccer ball with 6.25 N of force. How fast does the soccer ball accelerate, assuming that no friction acts on the ball?

a) 2.50 m/s2

b) 3.84 m/s2

c) 15.6 m/s2

d) 97.7 m/s2

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  1. 30 March, 10:45
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    F = ma

    6.25 N = 0.4 kg · a

    a = (6.25/0.4) m/s² since N=kg·m/s²

    a = 15.625 m/s²

    The answer is c) 15.6 m/s²

    (Note that the mass of the soccer player is irrelevant.)
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