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12 March, 13:36

A of mass 5.0 kilograms moving at 20. meters per second collides with ball B of unknown mass moving at 10. meters per second in the same direction. After the collision, ball A moves at 10. meters per second and ball B at 15 meters per second, both still in the same direction. What is the mass of ball B

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  1. 12 March, 16:24
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    Mass of B is 10 kg

    Explanation:

    M1v1a + m2v1b = m1v2a + m2v2b

    Let m2 = x

    5*20 + x10 = 5*10 + x15

    100 + x10 = 50 + x15

    50 = x5

    X = 10

    Mass of B is 10 kg

    M1 = mass of A

    V1a = initial velocity of A

    V2a = final velocity of A

    M2 = mass of B

    V1b = initial velocity of B

    V2b = final velocity of B
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Home » Physics » A of mass 5.0 kilograms moving at 20. meters per second collides with ball B of unknown mass moving at 10. meters per second in the same direction. After the collision, ball A moves at 10.
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