Question

a body of mass 5 kg falls from a height of 30 M if it's all mechanical energy is changed into heat then heat produce produce will be

Answer 1

Total initial energy = mgh
= 5 kg × 9.8 m/s² × 30 m
= 1470 Joule

This is it's total mechanical energy when it hits the ground.

∴ Heat produced is 1470 Joule

Answer 2

hope it will help you