The qualitative definition of force is given by

The inertia of an object tends to cause the object

When a carpet is beaten with a stick,it releases dust. Explain why?

$A$ water tanker filled up to $2/3$ of its height is moving with a uniform speed. On sudden application of the brake,the water in the tank would

$A$ block is supported by a cord $A$ from a rigid support,and another cord $B$ is attached to the bottom of the block. If you give a sudden jerk to $B$,it will break. But if you pull on $B$ steadily,$A$ will break. Why?

When a carpet is beaten with a stick,dust comes out of it. Explain.