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Question1

A 48-kg pole vaulter running at 14 m/s vaults over the bar. Her speed as she is above the bar is 1.3 m/s. ignore air resistance, as well as any energy absorbed by the pole, and find out her altitude as she crosses the bar.

Question2

Throughout a circus performance, an 82-kg human cannonball is shot out of 10-m-long cannon. If the human cannonball spends 0.78 s in the cannon, establish the average net force exerted on him in the barrel of cannon.

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Reference No.:- M9135041

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