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A body in a unitorm horizontal circular ...

A body in a unitorm horizontal circular motion possesses a variable velocit. Does it mean that the K.E. of the bodyis also veriable ?

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No, K .E. of body = 1/2 m v^(2) =1/2/ m ( vec v.vec v),
which is scalar. In unitorm cirular motion, speed of body (v) remains constant, hence K.E. of body remains constant in unitorm circular motion.
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