Force and Press...

If two bodies do not interact

When a football is kicked, its shape changes for a fraction of a second. This is because

You are pushing a ball. If your younger sister pushes it from the opposite side with lesser force, the ball will

You alone can push a roller. But when your friend joins you, the roller moves faster. This is because:

To pull a heavy goods' train, two engines are often connected one after another. This is to

A spring is compressed when a force is applied. This is an example of

Mechanical force exerted by living animals is

If a force changes the shape of a body, the body should be

When a force is applied on a non-rigid object,

When a force is applied on a rigid object