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A particle of mass 10g moves along a cir...

A particle of mass 10g moves along a circle of radius 6.4 cm with a constant tangential acceleration . What is the magnitude of this acceleration if the kinetic energy of the particle becomes equal to `8xx10^(-4)J` by the end of the second revolution after the beginning of the motion?

A

`0.2 m//s^2`

B

`0.1 m//s^2`

C

`0.15 m//s^2`

D

`0.18 m//s^2`

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