dust can be removed from a hanging carpet by shaking it or by beating it with a stick . give reason??
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3
Answer:
When you beat a carpet,the carpet comes into motion but dust particles stay at rest due to inertia of rest and fall down due to gravity.
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4
Answer:
Because it follows law of inertia,particles are at rest so they are at rest only when the carpet has beaten hence they are removed.
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