Question

    The dimension of which of the following is the same as

    that of impulse?
    A Volume Correct Answer Incorrect Answer
    B Momentum Correct Answer Incorrect Answer
    C Torque Correct Answer Incorrect Answer
    D Change in the rate of momentum Correct Answer Incorrect Answer

    Solution

    The quantity of impulse is force x time interval. In classical mechanics, linear momentum or translational momentum is the product of the mass and velocity of an object. For example, a heavy truck moving fast has a large momentum—it takes a large and prolonged force to get the truck up to this speed, and it takes a large and prolonged force to bring it to a stop afterwards. If the truck were lighter or moving slower, then it would have less momentum.

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