At time t=0 a grinding wheel has an angular velocity of 26.0 rad/s. It has a constant angular acceleration of 25.0 rad/s^2 until a circuit breaker trips at time t = 2.50 s. From then on, the wheel turns through an angle of 440 rad as it coasts to a stop at constant angular deceleration.
Through what total angle did the wheel turn between t=0 and the time it stopped? At what time does the wheel stop? What was the wheel's angular acceleration as it slowed down?
3 answers
What is your thinking on this? break the displacement and velocity in to time before t=2.5sec, and aft4er.
I don't understand the question. What's the displacement for either of those parts? What equation should I use?
Women should stick in the kitchen :D
5 answers