Question

If a carpet is beaten with a stick, dust comes out. 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

The correct option is A

First 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, then it comes in motion. But, the dust particles try to resist a change in their state of rest.

According to Newton's first law of motion, the dust particles stay in a state of rest, while the carpet moves. Hence, the dust particles come out of carpet.