1. 3 A body weighing 10 lb. (g = g c ) is moving with a velocity of 50 ft./s. From what height…

1. 3 A body weighing 10 lb. (g = gc) is moving with a velocity of 50 ft./s. From what height would it have to fall to achieve this velocity? What is its kinetic energy?

2. A body weighing 100 N is lifted 3 m. What will its velocity be after a free fall of 3 m?

3. Water flows over the top of a dam and falls freely until it reaches the bottom some 600 ft. below. What is the velocity of the water just before it hits the bottom? What is its kinetic energy per pound mass at this point?

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