# Please do these two questions and show all lines of working thanks in advance 16.13 A...

###### Question:

please do these two questions and show all lines of working
16.13 A flywheel, having a mass moment of inertia of 65 kg.m2, is to be accelerated from rest to a speed of 750 rpm in 30 s. If bearing friction is neglected, calculate the work that must be done to accomplish this. 16.14 If it is found that the average power actually required to accelerate the flywheel described in the previous problem is 9 kW, what is the magnitude of friction torque in the bearings?

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