Question

If a carpet is beaten with a stick, the dust comes out of it. Why does this happen?

• A. First law of motion
• B. Second law of motion
• C. Third law of motion
• D. Newton's law cannot explain this behaviour

Answer 1

Answer: (A), (C)

The correct options are
A

First law of motion

C

Third law of motion

The inertia of an object tends to resist any change in its state of rest or state of motion. When a carpet is beaten with a stick, a force is applied on the carpet, it comes in motion, overcoming the inertia of rest. But, the dust particles try to resist a change in their state of rest. According to Newton first law of motion, the dust particles stay in a state of rest, while the carpet moves. Hence, the dust particles come out of the carpet.