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A man paints with his brains and not with his hands. ..."Michelangelo (1475-1564, Italian sculptor, painter, architect and poet)"

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 Author Topic: Please Help Me on this QQ!! Thanks  (Read 16538 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
rabea
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lots!

 « Embed this message on: March 31, 2005, 03:28:52 pm »

Hi,
again this is someone elses question.could anyone of u help me out in solving it?
An inclined plane is 30 cm long and 6 cm high. A load of 100 N is pulled up the ramp with a force of 25 newtons.

What is the work input?

work output?

work lost to friction?

Efficiency?

Thanxs!!!!!
Sofia
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<life is what u make it>
Rabea
Fu-Kwun Hwang
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 « Embed this message Reply #1 on: July 19, 2005, 09:19:06 am » posted from:Taipei,T'ai-pei,Taiwan

The work done is the Force*distance

A load of 100N??? The unit of the load should not be the unit of force?

Need to know if the load is moving with constant velocity or need to know the coefficient of friction to find the work lost due to friction.
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A man paints with his brains and not with his hands. ..."Michelangelo (1475-1564, Italian sculptor, painter, architect and poet)"