Friction in Rotational Motion

Friction in rotational motion is the force that opposes the rotation of a moving or stationary object. When an object spins or turns, friction occurs between its contact surfaces—like a spinning wheel and the ground—that resist motion. This force transforms some of the energy into heat, making it harder for the object to keep spinning. Friction affects how easily objects start or stop rotating and influences their speed and stability. In practical terms, reducing friction (using lubricants) makes spinning equipment run smoothly, while increasing friction helps objects stay in place or stop rotating more quickly.