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    Question

    An Athlets runs before long jump to get advantage on

    –
    A Inertia of motion Correct Answer Incorrect Answer
    B Frictional force Correct Answer Incorrect Answer
    C Moment of a force Correct Answer Incorrect Answer
    D Principle of moments Correct Answer Incorrect Answer

    Solution

    An athlete does so to build up forward momentum so that when he jumps he already has a forward motion that would be greater than that of a jump made from standing in one spot. He needs forward momentum to get a good long jump and the best way is to have a running start. In this way, he gets advantage in terms of inertia of motion which is the tendency of an object to resist a change in motion.

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