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Pulley numerical(ans isnt matchin the book)

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ashleychan
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Pulley numerical(ans isnt matchin the book) Vide
PostSubject: Pulley numerical(ans isnt matchin the book) Pulley numerical(ans isnt matchin the book) EmptySun May 17, 2009 5:40 pm

The question is:

a machine is drived by a 100kg mass fallin @ of 8m in 4s. it lifts a load of 500kgf. calculate power input of machine. (g=10m/s2)
if efficiency is 75% to wat height is the load raised??

first answer is coming right - its 2000W but second one is not ccoming... it shud be 1.2 m
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ashleychan
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Pulley numerical(ans isnt matchin the book) Vide
PostSubject: Re: Pulley numerical(ans isnt matchin the book) Pulley numerical(ans isnt matchin the book) EmptyTue May 19, 2009 9:25 pm

Its ok it came...
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