Question

Why can dust be removed from a carpet by shaking it or by beating it with a stick ?

Answer 1

because the particles r struck hard in the rough surface of the carpet

Answer 2

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Initially, both the carpet and the dust are at rest.

When the carpet is shaken or beaten with a stick, it is set into motion will the dust remain in the state of rest due to inertia of rest.

Thus, dust falls down due to the pull of gravity.

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