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    Question

    If mass is doubled and velocity is tripled, how will

    kinetic energy change?  
    A Doubled Correct Answer Incorrect Answer
    B Tripled Correct Answer Incorrect Answer
    C 6 times Correct Answer Incorrect Answer
    D 18 times Correct Answer Incorrect Answer

    Solution

    KE∝mv² KE= 2m × (3v)² KE= 18 × original KE

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