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148. A uniform disc of radius R and mass M can rotate on a smooth axis passing through its centre and perpendicular to its plane. A force F is applied on its rim. See fig. What is the tangential acceleration

(a) 2F/M

(b) F/M

(c)  F/2M

(d) F/4M

Ans. a

(34)

5/5 - (1 vote)

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