Question

Which of the following is an example of the conversion of kinetic energy into gravitational potential energy?
a) a person walking up a hill
b) a person parachuting out of an airplane
c) a person skiing down a hill
d) a car racing around a oval track

Answer 1

the correct answer is -

a) a person walking up a hill.

Answer 2

a) Person walking up the hill
Because as height increases kinetic energy decreases and gravitational potential energy increases. But the mechanical energy remains same.
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