A fywheel has a mass of 60 kg and a radius of gyration of 450 mm. What uniform torque will be required to increase its speed from 3.0 to 4.0 rev/s in 20 s? A fywheel has a moment of inertia of 8 kg m...

A fywheel has a mass of 60 kg and a radius of gyration of 450 mm. What uniform torque will be required to increase its speed from 3.0 to 4.0 rev/s in 20 s?

A fywheel has a moment of inertia of 8 kg m²
about its axis of rotation. What will be the angular kinetic energy stored in the wheel when it is rotating at 4 rev/s?