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A rock of mass 54.5 kg breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 304 N. What is the magnitude of the acceleration of the rock?
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Question: A rock climber stands on top of a 60 m high cliff hanger a pool of water. He throws two stones vertically downward 1.0 s apart and observes that they cause a single splash. The initial speed of the first stone ...
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