If you are on a swing and your friend pulls it in the direction opposite to its motion, the swing will

The contact force applied without touching it is called

To lift 1 kg you would like to have apply a force of about

Which one of the following is something that can bring about a change in the state of rest or of motion of a body or a change in its shape or size?

To roll forward,there should be a friction between the wheels of a vehicle and

The force that opposes the motion or tendency of motion between two surface in contact is called

Materials used to reduce friction are called

Solids always exert pressure

The force exerted by a liquid on a body immersed fully or partially in it is the

When you walk or run, you push the ground