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6 August, 22:00

Rocío strikes a 0.058-kg golf ball with a force of 272N and gives it a velocity of 62.0m/s. How long was Ricío club in contact with the ball?

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  1. 7 August, 01:07
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    So lets list out we have here:

    velocity = 62 m/s

    Force = 272 N

    Mass = 0.058kg

    In studying momentum you learn that the force multiplied by the change in time is equal to the change in momentum.

    FΔt = Δp

    FΔt = p (final) - p (initial)

    The ball is orginally at rest so its momentum is zero because momentum = mass x velocity and if velocity is 0 then the whole equation goes to zero. So ...

    FΔt = p (final)

    Isolating for Δt gives

    Δt = p (final) / F

    Δt = mv / F

    Δt = (0.058) (62) / (272)

    Δt = 0.013 seconds
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