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17 February, 19:28

a bowling ball of mass 88.8kg moves in a straight line at 1.45m/s how fast must a ping pong ball of mass of 2.537g move in a straight line so that the two balls have the same momentum

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  1. 17 February, 21:16
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    M = mass of the bowling ball = 88.8 kg

    V = speed of bowling ball = 1.45 m/s

    P = magnitude of momentum of bowling ball = ?

    magnitude of momentum of bowling ball is given as

    P = MV

    inserting the values

    P = 88.8 x 1.45

    P = 128.8 J

    m = mass of ping-pong ball = 2.537 g = 2.537 x 10⁻³ kg

    v = speed of the ping-pong ball = ?

    p = magnitude of momentum of ping-pong ball

    Given that:

    magnitude of momentum of ping-pong ball = magnitude of momentum of bowling ball

    p = P

    m v = 128.8

    (2.537 x 10⁻³) v = 128.8

    v = 5.1 x 10⁴ m/s
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