9th Class Science Force and laws of motion Question Bank 9th CBSE Science Force and laws of motion

  • question_answer
      When a carpet is beaten with a stick, dust comes out of it. Explain. [NCERT]

    Answer:

                      Initially, the carpet and dust-particles are at rest. When the carpet is beaten, it is suddenly set into motion. The dust particles tend to remain at rest due to the inertia of rest, therefore, dust comes out of it.


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