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A triangular plate of uniform thickness and density is made to rotate about an axis perpendicular to the plane of the paper (a) passing through A,(b) passing through B, by the application of the same force F, at C (mid-point of AB) as shown. Now,
detailed solution
Correct option is C
τ=Fl2 is same in magnitude for both cases.Also, τ=IαSo, Iα is constant.Moment of Inertia is a quantity to measure how mass is distributed about the axis. Since, mass of plate is distributed far away from point A , MOI about axis passing through A is larger compared to point B. For case (b), I is small. So, α is largeTalk to our academic expert!
Similar Questions
A uniform rood AB of length and mass is free to rotate about point A. The rod is released from rest in the horizontal position. Given that the moment of inertia of the rod about A is , the initial angular acceleration of the rod will be
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