An 85kg clown standing on a 12.0kg skateboard throws a 3.00kg ball at you with a speed of 14.0m/s. The skateboard moves backwards. Determine the sped of the skateboard. Assume friction is negligible and that the skateboard and the clown were initially at rest.

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A: Givenm=1200 kgx0=(116, 0, 24)p=(4000, 0, -3600)as p=mvv=pm =11200(4000, 0, -3600)=(103, 0, -3)

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