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simple annoying physics!

mmmmmmm....... · 2009-11-05 18:04:02

obviously im not finding it simple but i know a lot of people who do.So could anyone tell me how to get the useful power output of a winch when i have the energy supplied,the potential energy and the work done to lift an object already answered.im stuck on this for ages now and i need it to answer the efficiency question…

05-11-2009 6:04pm

#1

mmmmmmm.......

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obviously im not finding it simple but i know a lot of people who do.So could anyone tell me how to get the useful power output of a winch when i have the energy supplied,the potential energy and the work done to lift an object already answered.im stuck on this for ages now and i need it to answer the efficiency question which is after it!!
help is greatly appreciated!!

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Comments

#2 05-11-2009 11:47pm

SOL

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at a guess I'd say it's efficiency is (potential energy gained)/(power inputed)

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