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)·http://www.saplinglearning.com/ibiscms/mod/ibis/view.php?id=2027556 Saint Mart

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Question

)·http://www.saplinglearning.com/ibiscms/mod/ibis/view.php?id=2027556 Saint Martin's University-P × File Edit View Favorites Tools Help Map Points POSA sapling learning Grade Cat Albert stands on a frictionless turntable, holding a bike wheel. Both Albert and the wheel are initially stationary. Albert gives the bike wheel a good spin, and it begins rotating clockwise Descriptio If the bike wheel has a final angular momentum of one unit, clockwise, what is the final angular momentum had by the rest of the system (i.e. Albert and the turntable)? Policies: You can ch You can vi You have f There is n For multipl two units, clockwise two units, counterclockwise one unit, clockwise one unit, counterclockwise zero units Incorrect. How is the direction of Albert's rotation relate to the direction of the wheel's rotation? O on the nun Albert flips the bike wheel upside down, so that it is now spinning the other way and has one unit of angular momentum in the counterclockwise direction. By how much does the angular momentum of Albert (plus turntable) change during the process of flipping the wheel? two units, clockwise zero units one unit, clockwise two units, counterclockwise eTextbo Help Wit Web Hel Technic o one unit, counterclockwise O Ask me anything 2:05 PM 11/1/2015

Explanation / Answer

1 Unit counterclockwise.

this is because of conservation of angular momentum.

initially both albert and wheel were at rest and hence initial total angular momentum was 0.

final total momentum also has to be 0 , and for that the sum of angular momentum of wheel and that of albert must be equal to 0

two units clockwise. since chance in momentum of albert must be same in magnitude to change in momentum of wheel and opposite in direction.