Calculate the change in momentum of a 0.140 kg baseball that starts at rest and is struck by a bat with a contact time of 0.32 seconds for 1

Question

Calculate the change in momentum of a 0.140 kg baseball that starts at rest and is struck by a bat with a contact time of 0.32 seconds for 100 N.

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Thiên Di 5 years 2021-07-28T04:32:24+00:00 1 Answers 19 views 0

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  1. ngockhue
    0
    2021-07-28T04:33:37+00:00
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    Answer: 32kgm/s

    Explanation:

    Given that,

    impulse I = ?

    Mass of baseball M = 0.140 kg

    force F = 100 N

    Time = 0.32 seconds

    Recall that impulse of an object is the product of force and the time during which it acts, and impulse is also equal to change in momentum.

    i.e Impulse = Force x Time

    Also, Change in momentum = Force x Time

    So, I = Ft = m(Vf – Vi)

    hence, Change in momentum = Ft

    Momentum = 100N x 0.32 seconds

    Momentum = 32kgm/s

    Thus, the change in momentum of the baseball is 32kgm/s

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