9th Class Science Sample Paper Science Olympiad Model Test Paper-10

  • question_answer
    Many people are familiar with the fact that a rifle recoils when fired. This recoil is the result of action reaction force pairs. A gunpowder explosion creates hot gases which expand outward allowing the rifle to push forward on the bullet. Consistent with Newton's third law of motion, the bullet pushes backwards upon the rifle. The acceleration of the recoiling rifle is________.

    A) Greater than the acceleration of the bullet

    B) Smaller than the acceleration of the bullet

    C) The same as the acceleration of the bullet

    D) All of these

    E) None of these

    Correct Answer: B

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