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Physics

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HELP! A tennis ball is attached to a .8m long string whirled around in a circle with a constant frequency of 1.2 Hz. What is the linear(tangential) velocity of the tennis ball?

  • Physics -

    radius = 0.8 m.
    C = pi*D = 3.14*(2*0.8) = 5.02 m. = Circumference.

    1.2 Hz = 1.2cycles/s.
    V = 1.2cy/s * 5.02m/cy. = 6.03 m/s.

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