A flywheel has a mass 200 kg and radius of gyration 0.6 m. It is given an angular speed of 150 rpm in 90 rotations starting from rest. Determine the torque assuming it to be constant that acted on the flywheel.

A flywheel has a mass 200 kg and radius of gyration 0.6 m. It is given

1.	A flywheel has a mass 200 kg and radius of gyration 0.6 m. It is given an angular speed of 150 rpm in 90 rotations starting from rest. Determine the torque assuming it to be constant that acted on the flywheel.
Answer» SOLUTION :`a=omega^(2)//2THETA = (2pi xx 2.5)^(2)//2 xx 2pi xx 90 =0.22 "rads^(-2), tau=Mk^(2)ALPHA = 200 xx 0.62 xx 0.2^(2)=15.8 Nm`