Question

Name the principle on which a rocket works.

  • Force and laws of motion CBSE Class 9
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Answer

Newton’s third law of motion

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force and laws of motion

Two friends were going for a short tour and on the way the car suddenly stopped. Both of them managed to push the car of mass 1100 kg at a uniform velocity along a level road. In the meantime a villager came to help them and the same car was now pushed by three persons at an acceleration of 0.2 m/s2 . After reading the passage carefully answer the following questions: (𝒊) With what force does each person push the car? (𝒊𝒊) Which value is promoted here? (Consider that each person pushes the car with the same efficiency.)

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