When a carpet is beaten with a stick, dust comes out because of Newton’s first law of motion (law of inertia).
Explanation:
- The carpet is initially at rest along with the dust particles on it.
- When we strike the carpet, it suddenly moves, but the dust particles tend to remain in their state of rest due to inertia.
- As a result, the dust separates from the carpet and falls off.
Conclusion: Dust comes out of the carpet because the dust resists sudden motion and remains behind when the carpet is moved.