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A uniform disc of mass M and radius R rolls without slipping down a plane inclined at an angle θ with the horizontal. The magnitude of torque acting on the disc is 

(A) MgR 

(B) MgR sin θ 

(C) [(2 MgR sin θ) / 3] 

(D) [(MgR sin θ) / 3]

1 Answer

+1 vote
by (71.2k points)
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Best answer

Correct option: (D) [(MgR sin θ) / 3]

Explanation:

τ = f  R

= [(MgR sin θ) / 3] 

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