boy is pushing a ring of mass 2 kg and radius 0.5 m with a stick..The stick applies a force of 2N on the ring and rolls it
without slipping with an acceleration of 0.3 m/s2. The coefficient of
friction between the ground and the ring is large enough that rolling
always occurs and the coefficeint of friction between the stick and the ring
is (P/10). The value of P is