Distinguish, differentiate, compare and explain what is the difference between Sliding and Rolling Friction.
Comparison and Difference between Sliding and Rolling Friction
1. Sliding friction is the force of friction acting between two bodies which slide or surfaces which are rubbing against each other. Rolling friction occurs when the surface of one body is rolling against the surface of another body.
2. Rolling of the bodies over other actually reduces the friction while sliding of the body increases the friction. Hence sliding friction is always larger than rolling friction.
3. Sliding friction acts as a back-haul external force along the contact area to stop the relative motion. Rolling friction is a force which attempts to stop the rolling motion by generating a reverse torque and so, rolling friction is a resistive force but not a type of friction.