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in an atwood machine case when one of the block descends by a distance h over a pulley with a particular mass and moment of inertia does the tension force (which is different in the 2 parts of the string connecting the blocks) do any work??
 one year ago
 one year ago
in an atwood machine case when one of the block descends by a distance h over a pulley with a particular mass and moment of inertia does the tension force (which is different in the 2 parts of the string connecting the blocks) do any work??
 one year ago
 one year ago

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VincentLyon.FrBest ResponseYou've already chosen the best response.1
dw:1357247606005:dw Yes, they do. But so do –T1 and –T2. Since the string is inextensible, powers of T1 and –T1 cancels out. So do powers of T2 and –T2. So whole system, including pulley is conservative.
 one year ago

srijitBest ResponseYou've already chosen the best response.0
so in any case work done by an inextensible string is 0?
 one year ago

VincentLyon.FrBest ResponseYou've already chosen the best response.1
String has to be inextensible and massless too.
 one year ago

VincentLyon.FrBest ResponseYou've already chosen the best response.1
Here is a summary of usual assumptions with tensions and pulley that I wrote last April to answer a question similar to yours.
 one year ago

srijitBest ResponseYou've already chosen the best response.0
yeah got it crystal clear!
 one year ago
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