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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A disc of moment of inertia kg m is rotating at 600 rpm. If the frequency of rotation changes from 600 rpm to 300 rpm, then what is the work done? [MHT-CET 2023]

Answer: (A)

Solution

600 rpm = 10 Hz, 300 rpm = 5 Hz; \fracMissing superscript or subscript argument12I(ω_1^2Missing superscript or subscript argument-ω_2^2)\frac\frac{9.8}{π^2}$\

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Question ID VK-040820