Theory of Machine
Maximum fluctuation of energy in a flywheel is equal to [where I = Mass moment of inertia of the flywheel, E = Maximum fluctuation of energy, CS = Coefficient of fluctuation of speed, and ω = Mean angular speed = (ω₁ + ω₂)/2]

All of these
2.E.CS
I.ω².CS
I.ω.(ω₁ - ω₂)

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Theory of Machine
Inertia force acts

Perpendicular to the acceleration force
Along the direction of acceleration force
None of the listed here
Opposite to the direction of acceleration force

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