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Q.

A particle does uniform circular motion in a horizontal plane. The centripetal force acting on the particle is 10 N. It's kinetic energy is 1 joule. The radius of the circular path is 

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a

0.02 m

b

2 m

c

0.1 m

d

0.2 m

answer is B.

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Detailed Solution

mv2r=10  and 12mv2=1 mv2=10r 1210r=1 r=210m=0.2 m 

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