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23 August, 17:30

A soccer ball is at rest and is then kicked giving it a final velocity of 6.0 m/s. The ball has a mass of

0.28 kg. If the time of contact between the soccer player's foot and the ball is 0.020 s, what was the

average force applied to the ball?

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  1. 23 August, 17:49
    0
    The average force applied to the ball is 84N

    Step-by-step explanation:

    This problem bothers on the impulse of a force

    Given data

    Mass of ball m = 0.28kg

    Initial speed u = 0m/s

    Final speed v = 6m/s

    Time of impact t = 0.02s

    We know that the impulse of a force

    Ft = mv-mu

    Hence the force is

    F = (mv-mu) / t

    F=m (v-u) / t

    F = 0.28 (6-0) 0.02

    F = 1.68/0.02

    F = 84N
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