A 40.0-kg boy, riding a 2.50-kg skateboard at a velocity
Chapter , Problem 22(choose chapter or problem)
A 40.0-kg boy, riding a 2.50-kg skateboard at a velocity of 15.30 m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, the boys velocity relative to the sidewalk is 6.00 m/s, 9.508 above the horizontal. Ignore any friction between the skateboard and the sidewalk. What is the skateboards velocity relative to the sidewalk at this instant? Be sure to include the correct algebraic sign with your answer.
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