MHT CET Physics question

Physics Systems of Particles and Rotational Motion MHT CET

Which one of the following rotating about their axis of symmetry has both linear and rotational kinetic energies are same( equal)

(A)sphere
(B)uniform rod
(C)ringCorrect
(D)disc

Answer: (C)

Solution

Equal energies need , i.e. when rolling, which holds only for a ring; for a sphere

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Question ID VK-040386