In a Little League baseball game, the 145 g ball reaches the batter with a speed of 15.0 m/s. The batter hits the ball, and it leaves his ba

Question

In a Little League baseball game, the 145 g ball reaches the batter with a speed of 15.0 m/s. The batter hits the ball, and it leaves his bat with a speed of 20.0 m/s in exactly the opposite direction. What is the magnitude of the impulse delivered by the bat to the ball

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Thu Giang 1 year 2021-08-14T15:09:23+00:00 1 Answers 8 views 0

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  1. thanhha
    0
    2021-08-14T15:10:39+00:00
    Reply

    Answer: 5.075Ns

    Explanation:

    Given the following :

    Mass of ball = 145g

    Initial Speed of ball = 15m/s

    Final speed of ball when hit by the batter = – 20m/s ( Opposite direction)

    The impulse of a body is represented using the relation:

    Force(f) * time(t) = mass (m) * (final Velocity(V) – initial velocity(u))

    Therefore, using:

    m(v – u) = impulse

    Mass of ball = 145 / 1000 = 0.145kg

    Impulse = 0.145(- 20 – 15)

    Impulse = 0.145(-35)

    Impulse = 5.075Ns

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