A spool of mass `m` has moment of inertia `I= 2mR^(2)` about its axis of symmetry. The inner and outer radius of spool `R` and `

A spool of mass `m` has moment of inertia `I= 2mR^(2)` about its axis of symmetry. The inner and outer radius of spool `R` and `2R` respectively. Thread is wounded on the inner cylinder and its one end is pulled a force F acting at angle `theta` with horizontal. The surface is sufficiently rough and th.e spool never slides on the surface.

Maximum frictional force acting on the spool is:
A. `F/2` towards right
B. `(2F)/3`
C. `(5F)/6`
D. `F/6`

A spool of mass `m` has moment of inertia `I= 2mR^(2)` about its axis of symmetry. The inner and outer radius of spool `R` and `2R` respectively. Thre

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