iiio9979 iiio9979

06-04-2024
Physics

contestada

A particle of mass m is moving in horizontal circle of radius r with uniform speed v. When it moves from one point to a diametrically opposite point its
A. KE changes by 1/4mv².
B. KE changes by mv².
C. momentum does not change.
D. momentum changes by 2mv.

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