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 Form 4 Physics Uniform Circular Motion Questions and Answers

A turntable of radius 8cm is rotating at 33 revolutions per second .Determine the linear speed of a point on the circumference of the turntable.
(KCSE 2009 paper 1 question 14.).

 (2m 32s)
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Answer Text:
#T = (2 pi)/omega rightarrow 1/33 = (2 pi)/omega rightarrow omega =2 times 22/7 times 33 =207.4#
#V =r omega = 0.08 times 207.4# = 16.59 m/s.


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