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Consider a spool of mass "2kg" and inner...

Consider a spool of mass "2kg" and inner and outer radii of "1m" and "2m" respectively acted by forces "F=10N" as shown in figure Moment of inertia of the spool about an axis passing through "O" and perpendicular to the plane of paper is "4kgm^(2)" The frictional force (in "N" ) acting on the body if it performs pure rolling, is :

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