Question

A wooden block is pushed across the rough surface.This makes the bottom of the block feel warm why

Answer 1

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✰$\bold{\orange{\underline{Friction}}}$✰

Basically that is due to fricton force which gets applied because of the rough surface.

When there is a movement between the rough surfaces the fricton force always acts opposite to the direction of force applied,so there is some kinetic energy loss which is the warmth that can be felt on the bottom.

τнänκ чöü♥

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