Question

Example 2: A stone falls from the top of a cliff, 80 m high. When it reaches the foot of the cliff, its speed is 38 m/s.

(a) Calculate the proportion of the stone’s initial gravitational potential energy that is converted to kinetic energy.

(b) What happens to the rest of the stone’s initial energy, assuming no air resistance acting on the stone during the fall?​

Answer 1

Answer:

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