Problem 10 turning moment diagram for equation of torque / Theory of machines

The turning moment curve for an engine is represented by equation , T= (20000+ 9500 sin2θ - 5700 cos 2θ) N-m, where θ is the angle moved by the crank from inner dead centre. If the resisting torque is constant, find:
1. Power developed by engine
2. Moment of inertia of flywheel in kg-m2, if the total fluctuation of speed is not to exceed 1% of mean speed which is 180 rpm
3. Angular acceleration 9f the flywheel when the crank has turned through 45° from inner dead centre.



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