The vertical-axis windturbine consists of two blades that have a parabolic shape. If the b...

The vertical-axis windturbine consists of two blades that have a parabolic shape. If the blades are originally at rest and begin to turn with a constant angular acceleration of αc = 0.5 rad/s2, determine the magnitude of the velocity and acceleration of points A and B on the blade when t = 4 s.