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    Question

    A bomb at rest explodes into a large number of tiny

    fragments. The total momentum of all the fragments –
    A is zero Correct Answer Incorrect Answer
    B depends on the total mass of all the fragments Correct Answer Incorrect Answer
    C depends on the speeds of various fragments Correct Answer Incorrect Answer
    D is infinity Correct Answer Incorrect Answer

    Solution

    In an explosion, an internal impulse acts in order to propel the parts of a system (often a single object) into a variety of directions. After the explosion, the individual parts of the system (that is often a collection of fragments from the original object) have momentum.

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