Question

Deduce on expression for kinetic energy when a body is rolling on a plane surface without slipping.

Answer 1

Hey mate! ...

See the attachment

Answer 2

Every body that is in motion is obeying the law of kinetics .

Kinetic energy of any body depends on the kind of motion the body is exhibiting ,in the rolling of for example a wheel ,we consider the mass ( m) and the radius (r ) .

If the body is rolling on a place surface ,its kinetics is a combination of both rotational motion and the rotational motion

In determining the instantenous speed we consider the radius