A machinist 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 The wheel is run at that angular velocity for 37 s and then power is shut off.The wheel decelerates uniformly at 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

Question

A machinist 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  The wheel is run at that angular velocity for 37 s and then power is shut off.The wheel decelerates uniformly at  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

Quizplus · Accepted Answer

The Answer of A machinist 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  The wheel is run at that angular velocity for 37 s and then power is shut off.The wheel decelerates uniformly at  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

A Machinist Turns the Power on to a Grinding Wheel,which