A cliff diver, mass 185 lbm, dives from a 155 ft cliff into the sea. Gravitational constant = 32.2 feet per second squared. Neglecting air friction:
(a) What is the diver’s total energy in joules at the following heights: 100 ft, 50 ft, surface of the water?
(b) What is the diver’s velocity in mph at the first contact with the water?
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