Awind turbine has 12,000 kg blades that are 36 m long. the blades spin at 24 rpm

As we know that centripetal force is given as

here we know that

m = 12000 kg

R = 18 m

here we assumed that radius is half of the length of blade as here the center of mass is concentrated at mid point of blade

now the force is given as

so above is the centripetal force on the blade

10 s

Explanation:

Given

Engine generates power

Force exerts

Distance traveled

work done is given by

Also, Energy is given as

Insert the values