Question: A 2-oz tennis ball was served at 160 ft/sec (about 109 mph). How much work was done on the ball to make it go this

A 2-oz tennis ball was served at 160 ft/sec (about 109 mph). How much work was done on the ball to make it go this fast? (To find the ball’s mass from its weight, express the weight in pounds and divide by 32 ft/sec², the acceleration of gravity.)

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