The tub of a washer goes into its spin-dry cycle, startingfrom rest and reaching an angular speed of 4.0 rev/s in 7.0 s.At this point the person doing the laundry opens the lid, and asafety switch turns off the washer. The tub slows to rest in9.0 s. Through how many revolutionsdoes the tub turn during this 16 sinterval? Assume constant angular acceleration while it is startingand stopping.