Why are not able to rotate a wheel by pulling or pushing along its radius ?

Why are we not able to rotate a wheel by pulling or pushing along its radius?

Why are we not able to rotate a wheel by pulling or pushing along its radius?

Why it is easier to roll a barrel than to push it along the road ?

It is easier to roll a barrel than to pull it along the road. Why ?

The radius of a wheel is R and its radius of gyration about an axis passing through its centre and perpendicular to its plane is k. If the wheel is rolling without slipping , the ratio of its rotational kinectic energy to its translational kinectic energy is

It is easier to roll barrel than to pull it along the road why

Explain why it is difficult to open a door by pushing or pulling it near the hinge.

The radius of a wheel is R and its radius of gyration about an axis passing through its centre and perpendicular to its plane is K. If the wheel is rolling without slipping the ratio of its rotational kinetic energy to its translational kinetic energy is