Question

A boy is trapped on a frictionless surface. How will he escape

Answer 1

He will blow air out of his mouth in one direction so that he will move in the opposite direction with the same force as the surface is frictionless. Thus he will escape by coming to the end

Answer 2

plunge your foot into the ground you compress it a little based on the atomic theory of matter. This impression allows your foot to be slightly lower than adjacent atoms and can therefore push away from them.