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An object of mass 50 kg is moving in a h...

An object of mass 50 kg is moving in a horizontal circle of radius 8 m . If the centripetal force is 40 N, then the kinetic energy of an object will be

A

320 j

B

260 j

C

220 j

D

160 j

Text Solution

Verified by Experts

The correct Answer is:
D
`K.E= (1)/(2)mv^(2)=(1)/(2)((mv^(2))/(r))r=(1)/(2)Fxxr`
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