Homework Help: Physics

Posted by Phil on Monday, March 12, 2012 at 12:01am.

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 - Henry, Tuesday, March 13, 2012 at 4:45pm
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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