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Q.

A horizontal force F is applied through the center of mass of a solid sphere of mass m and radius R which lies on a horizontal rough surface. If the sphere rolls without slipping, the acceleration of the center of mass of the sphere will be (g = 10m/s2)

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a

3F5M

b

F/M

c

2F3M

d

5F7M

answer is C.

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Detailed Solution

F – f = macm .....(i)

Rf=Icmα

 Rf=25mR2aR 

f=25ma  ...(ii)

F=25ma+ma 

 F=75maa=57Fm

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