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23 Nov 2019
The tub of a washer goes into its spin-dry cycle, starting fromrest and reaching an angular speed of 5.0 rev/s in 7.0 s. At thispoint, the person doing the laundry opens the lid, and a safetyswitch turns off the washer. The tub slows to rest in 12.0 s.Through how many revolutions does the tub turn during this 19 sinterval? Assume constant angular acceleration while it is startingand stopping.
The tub of a washer goes into its spin-dry cycle, starting fromrest and reaching an angular speed of 5.0 rev/s in 7.0 s. At thispoint, the person doing the laundry opens the lid, and a safetyswitch turns off the washer. The tub slows to rest in 12.0 s.Through how many revolutions does the tub turn during this 19 sinterval? Assume constant angular acceleration while it is startingand stopping.
Collen VonLv2
23 Nov 2019