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A particle of mass M is moving in a hori...

A particle of mass M is moving in a horizontal circle of radius R with uniform speed v. When the particle moves from one point to a diametrically opposite point , its

A

K.E. changes by `mv^2//4`

B

momentum does not change

C

momentum changes by 2 mv

D

K.E. changes by `mv^2`

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