Question

why rolling friction is less than sliding friction and sliding friction is less than static friction​

Answer 1

Answer:

Rolling friction is considerably less than sliding friction as there is no work done against the body that isrolling by the force of friction. For a body to start rolling a small amount offriction is required at the point where it rests on the other surface, else it would slide instead of roll.

Answer 2

Answer:

Explanation:

Rolling friction is considerably less than sliding friction as there is no work done against the body that isrolling by the force of friction. For a body to start rolling a small amount offriction is required at the point where it rests on the other surface, else it would slide instead of roll.