A boy is pulshing a ring of mass 3 kg a...

A boy is pulshing a ring of mass 3 kg and radius 0.6 m with a stick as shown in figure. The stick applies a force of 3N on the ring and rolls it without slipping with an acceleration of 0.4 `m//s^(2)`
The coefficient of friction between the ground and the ring is large enough that rolling always occurs and the coefficeient of friction between the stick and the ring is `(f)/(10)` The vlaue of F is

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