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cse • paper_1 • mechanicscse-2014-subject-01-005

Rigid-body rotation — UPSC CSE 2014 Physics PYQ

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Consider a rigid body rotating about an axis passing through a fixed point in the body with an angular velocity \vec{\omega}. Determine the kinetic energy of such a rotating body in a coordinate system of principal axis. If the earth suddenly stops rotating, what will happen to the rotational kinetic energy? Comment in detail.

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