A wind turbine has 12,000 kg blades that are 37m long. The
blades spin at 23rpm .
If we model a blade as a point
mass at the midpoint of the blade, what is the inward force
necessary to provide each blade's centripetal
acceleration?
1rpm = 2pi/60 rad/sec
centripetal force F = mv^2/r or mr
w^2
F = 12000 * ((37/2) * (23*2*3.14/60)2
F = 1.286 *10^6