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    Question

    A particle of mass 0.2 kg is rotated in a circle of

    radius 0.5 m at 4 rad/s. Its centripetal force is:
    A 1.6 N Correct Answer Incorrect Answer
    B 0.8 N Correct Answer Incorrect Answer
    C 0.4 N Correct Answer Incorrect Answer
    D 2 N Correct Answer Incorrect Answer

    Solution

    F=mrω2 =0.2×0.5×16=1.6 N

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