Question

Explain that heat is produced when one object rubs against another, such as rubbing one's hands together. Give other examples.

Answer 1

when we rub two objects together,we do mechanical work.there is friction also which tends to resist the force we apply to rub the objects.therefore friction acts as a dissipative force.some amount of the mechanical work we do is used to resist friction and the rest appears as heat

Answer 2

Thank u