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tracie34_19992003

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Due on Nov. 08, 2009
Asked on Nov 06, 2009 at 10:35:00PM

Q:

The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 2.0 rev/s in 9.0 s. 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 11.0 s. Through how many revolutions does the tub turn during this 20 s interval? Assume constant angular acceleration while it is starting and stopping.
1 rev

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mellisa

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Posted on Nov 07, 2009 at 02:11:23PM

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Preview: ... erson doing the laundry opens the lid, and a safety switch turns off the washer. The tub slows to rest in 11.0 s. Through how many revolutions do ...

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wch1

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Posted on Nov 07, 2009 at 02:57:53PM

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Preview: ... =[ ( 0+2)(2π rad /rev) /2](11) = 69.11rad. Total displacement θ1+θ2 =56.54 rad.+ 69.11 rad ...

The full tutorial is about 74 words long .