A 1 kg ball moving horizontally to the right at 3 m/s strikes a wall and rebound, moving horizontally to the left at the same velocity of 3

Question

A 1 kg ball moving horizontally to the right at 3 m/s strikes a wall and rebound, moving horizontally to the left at the same velocity of 3 m/s. What is the magnitude of the change in linear momentum of the ball?

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Thanh Hà 5 years 2021-07-28T18:41:23+00:00 1 Answers 255 views 0

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  1. thugiang
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    2021-07-28T18:42:37+00:00
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    Answer:

    The magnitude of the change in linear momentum of the ball is 6 kg-m/s.

    Explanation:

    Given that,

    Mass of the ball, m = 1 kg

    Initial sped of the ball, u = 3 m/s

    It strikes a wall and rebound, moving horizontally to the left at the same velocity of 3 m/s, v = -3 m/s

    The magnitude of the change in linear momentum of the ball is given by :

    p=m(v-u)\\\\p=1\ kg\times (-3-3)\\\\p=-6\ kg-m/s

    So, the magnitude of the change in linear momentum of the ball is 6 kg-m/s.

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