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A 1200 lb wrecking ball with a velocity of 4 ft/s at the bottom of its...

A 1200 lb wrecking ball with a velocity of 4 ft/s at the bottom of its arc strikes a wall and comes to rest in a distance of 9 in. Negleting any change in elevation of the ball, determine: the average force on the wall in lbs. The deceleration rate in ft/s2, and the time period of decceleration in seconds.

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