What is the mass of the skateboard

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Reference no: EM13336258

A student m = 81 kg runs at a velocity vi = 2.25 m/s before jumping on a skateboard. After jumping on the board the student has a velocity vf = 1.75 m/s.

a) Write an expression for the weight of the skateboard W.

b) What is the mass of the skateboard in kg?

c) The student soon loses his balance and falls backwards off the board at a velocity of 4 m/s. What is the skateboards new velocity in m/s?

Reference no: EM13336258

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