When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point of a vertical toss). The racquet exerts a

Question

When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point of a vertical toss). The racquet exerts a force of 540 N on the ball for 5.00 ms, giving it a final velocity of 45.0 m/s. Using these data, find the mass of the ball

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Farah 5 years 2021-08-31T00:53:03+00:00 1 Answers 20 views 0

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  1. Latifah
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    2021-08-31T00:54:57+00:00
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    Answer:60 gm

    Explanation:

    Given

    initial velocity of ball u=0

    Force exerted by racquet F=540 N

    time period of force t=5\ ms

    final velocity of ball v=45\ m/s

    Racquet imparts an impulse to the ball which is given by

    J=F\Delta t=\Delta P

    J=540\times \Delta t=m(45-0)

    m=\frac{540\times 5\times 10^{-3}}{45}

    m=60\ gm

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