A 50.0kg pole vaulter running at 10.0ms vaults over the, Ask an Expert

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Q1. A man pushes on a piano with mass 170 so that it slides at constant velocity down a ramp that is inclined at 19.4 above horizontal floor. Neglect any friction acting on the piano. Compute the magnitude of the force applied by the man if he pushes parallel to the incline.

Q2. A 50.0kg pole vaulter running at 10.0m/s vaults over the bar. Assume that the vaulter's horizontal component of velocity over the bar is 1.0 m/s and disregarding air resistance, how high was the jump?

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