Question.
When a carpet is beaten with a stick, dust comes out of it. Explain.
When a carpet is beaten with a stick, dust comes out of it. Explain.
Solution:
Initially, the carpet and loose dust in it are in the state of rest. When the carpet is hit with a stick, it is suddenly set into motion, but the loose dust in it remains in the state of rest because of inertia of rest. Thus, in a way, dust is left behind relative to carpet and hence comes out in air.
Initially, the carpet and loose dust in it are in the state of rest. When the carpet is hit with a stick, it is suddenly set into motion, but the loose dust in it remains in the state of rest because of inertia of rest. Thus, in a way, dust is left behind relative to carpet and hence comes out in air.