Force and Laws of Motion · Class 9 · CBSE Science
When a hanging carpet is beaten with a stick, dust particles are removed from it. This phenomenon can be best explained by:
Practice question from Force and Laws of Motion (Class 9 · CBSE Science), with the correct answer and a step-by-step solution.
medium · MCQ · Q-C9EF9F
When a hanging carpet is beaten with a stick, dust particles are removed from it. This phenomenon can be best explained by:
- A.Newton's first law of motionCorrect answer
- B.Newton's second law of motion
- C.Newton's third law of motion
- D.Law of conservation of momentum
Solution
This is an example of inertia of rest (Newton's first law). When the carpet is beaten, it moves forward suddenly, but the dust particles tend to remain at rest due to inertia and thus get separated.
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