A particle is moving in a circle with uniform speed v . In moving from a point to another diametrica

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3-2.Motion in Plane

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A particle is moving in a circle with uniform speed $v$. In moving from a point to another diametrically opposite point

AThe momentum changes by $mv$

BThe momentum changes by $2mv$

CThe kinetic energy changes by $(1/2)mv^2$

DThe kinetic energy changes by $ mv^2$

Solution

(b) Momentum changes by $2\,mv$ but kinetic energy remains same.

Standard 11

Physics

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