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science

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A boy and his skateboard have a combined mass of 64 kg. If he is moving with a speed of
3.2 m/s, and collides with a stationary skateboarder whose mass (including his skateboard) is
96 kg, with what speed will the two skateboarders move immediately after the collision?

  • science - ,

    p=mv
    M1V1=M2V2
    (64kg)(3.2m/s)=(96+64)(V2)
    (64kg)(3.2m/s)/160kg=V2
    1.28m/s= V2

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