A wind turbine has a rotor of 55 m in diameter, mounted at a hub-height of 60 m. The gear-box ratio is
1:28. If it operates at a tip speed ratio of 8 in a wind speed of 10 m/s, with a power coefficient of 0.35 and
a thrust coefficient of 0.55, calculate:
(a) the torque on the generator shaft
(b) the overturning moment at the base of the tower