Amachinist turns the power on to a grinding wheel, which is at rest at time t = 0.00 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 25 rad/s. the wheel is run at that angular velocity for 37 s and then power is shut off. the wheel decelerates uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of angular deceleration (slowing down) is closest to:
a) 17 s b) 15 s c) 19 s d) 21 s e) 23 s