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Question: can someone please help me with this question im struggling...

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Question 3 value of the turning moment exerted by a multi-cylinder engine, where 6 is a crank angle, is given by 12250-6000 sin 0+ 1500 sin 30 Nm. Find the radius of gyration of the fl whose mass is 1208 kg, if the variation in speed is not to exceed 1.3% of the mean speed of 246 rev/min. ITOTAL: 100 Marks)

Can someone please help me with this question. I'm struggling a bit. Please show all calculations and steps.

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