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A raindrop of mass 3.35 x 105 kg falls vertically at constant speed under the influence of gravity and air resistance. Model the drop as

A raindrop of mass 3.35 x 10─5 kg falls vertically at constant speed under the influence of gravity and air resistance. Model the drop as a particle. As it falls 100 m, what is the work done on the raindrop (a) by the gravitational force and (b) by air resistance?

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