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an apple of mass m=0.13kg falls from a tree and hits the ground with a speed...

an apple of mass m=0.13kg falls from a tree and hits the ground with a speed of v=14m/s. (a) what is the magnitude of the force of gravity, mg, acting on the apple? (b) what is the time, t, required for the apple to reach the ground? (c) show that the force of gravity times the time, mgt, is equal to mv. Be sure to show that the dimensions are in agreement as well as the numerical values. Draw a diagram

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