9th Class Science Force and laws of motion Question Bank Force And Laws Of Motion Summtive Subjective Problems

  • question_answer
    Why does a ball rebounce, when it is dropped on the floor?

    Answer:

    When a ball falls towards the earth, the earth exerts a force \[({{F}_{1}})\] on the ball, to attract the ball towards its centre. On the other hand, the ball exerts a force \[({{F}_{2}})\] on the earth to move upward.


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