Two balls are dropped (with zero initial speed) from a height h. show answer No Attempt If ball A has twice the mass of ball B, what can be

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Two balls are dropped (with zero initial speed) from a height h. show answer No Attempt If ball A has twice the mass of ball B, what can be said about the momentum of each just before they hit the ground? Ignore air resistance.

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Đan Thu 5 years 2021-08-29T03:05:10+00:00 1 Answers 26 views 0

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  1. Latifah
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    2021-08-29T03:07:01+00:00
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    Answer:

    Explanation:

    Let the mass of ball B is m so that the mass of ball A is 2m.

    initial velocity of both the balls = 0

    Let both the balls falls from the height h.

    Use third equation of motion,

    v² = u² + 2gh

    so, the velocity with which the balls hit the ground is

    v=\sqrt{2gh}

    So, both the balls hit the ground with the same speed.

    momentum, p = mass x velocity

    As the velocity is same but the mass of ball A is 2 times the mass of ball B, so the momentum of ball A is twice the momentum of ball A.

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