The angular velocity of the rotor changes from ω0=300rad/s to ω1=150 rad/s'> in a time interval Δt1=2.0 minute'> as the rotor slows to rest at constant acceleration.
(a) Evaluate the angular acceleration α?
(b) Find what time interval Δt2 is required for the rotor to come to rest from its initial angular velocity ω0?
(c) Find how many revolutions do the blades make in coming to rest from the initial velocity ω0?