A rod of mass m, length L is rotating with uniform angular velocity ' ω ', about one of its ends, and axis along z-axis. At any instant, the rod is found along x-axis, as shown in figure. At

Question

A rod of mass m, length L is rotating with uniform angular velocity ' $ω$ ', about one of its ends, and axis along z-axis. At any instant, the rod is found along x-axis, as shown in figure. At this instant, the angular momentum of rod about A (0, 0) is $L_{1}$ and B (L, 0) is $L_{2}$ . (Both A and B are fixed points and gravity is absent) Then :

CT45 m8 diagram

TestHub · Accepted Answer

Apply the rolling, torque and energy relations to the stated geometry. Substitution and simplification give the marked answer A.

Physics - Rotation Question with Solution | TestHub

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