Question

Write the law of conservation of energy. Find potential energy if 5 kg mass is at 5 metre hieght.

Answer 1

According to the law of conservation of energy, the energy can neither be created nor destroyed. They can only be converted from one form to other.

given that, m=5kg
h=5m
g=9.8

PE=mgh
=5×9.8×5
=245J

hope this helps....

Answer 2

law of conservation of energy states that energy can only be transferred from one form to another, it can neither be created nor destroyed. the total amount of energy before and after collision remains constant.

m=5kg
h=5m
Kp=mgh
=5×9.8×5
=245J

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