The tub of a washer goes into it's spin-dry cycle, starting from rest and reaching an angular speed of 3.0 rev/s in 13.0 second. At this point, the person doing the laundry opens the lid, and a safety switch turns off the washer. The tub slows to rest in 9.0 second. Find through how many revolutions does the tub turn during this 22 second interval? Suppose constant angular acceleration while it is stopping and starting.
rev