Stationary Force Can Be Utilized To Do Work.

Posted At : October 17, 2008 10:00 PM | Posted By : Jigar Y Patel
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As showm in figure stationary force (MG) applied on two pulleys. Force is not moving. Pulleys can rotate about their axis. We simply do force analysis. Mg will equally devide and applied on each pulley in vertical downward direction. This MG/2 further devided in two parts. One is tengential and second is towards the center. Tengential part will help to rotate the pulley and towards the center part will generate friction. So force is not moving and it can help to rotate pulley.

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No movement = no work. TANSTAAFL

# Posted By Penny Gruber | 10/20/08 2:17 AM | Report This Comment as Foul/Inappropriate

Mr. Penny Gruber
You dont write about force analysis. You should write about free body diagram and force analysis. Any way I am not agree with you that No motion , no work.

# Posted By Jigar Patel | 10/20/08 4:37 AM | Report This Comment as Foul/Inappropriate

Sorry; if I was teaching at a university, you just flunked statics and dynamics...I am not going to bother getting into strength of materials and thermodynamics...

# Posted By William Norquay | 10/20/08 9:38 AM | Report This Comment as Foul/Inappropriate

I think I passed strength of material with 62/100. I just did force analysis as it should be done.

# Posted By Jigar Patel | 10/20/08 10:09 AM | Report This Comment as Foul/Inappropriate

What part of W = integral ( F * ds ) escapes you?

The construction of your machine is simple enough. If you think it works, try and build one big enough to power your home and tell everyone afterwards how that works out.

# Posted By Penny Gruber | 10/21/08 12:53 AM | Report This Comment as Foul/Inappropriate

I dont have money to build it. I think stock market is very tight. So I cant sell my stock at this rate.

# Posted By Jigar Patel | 10/21/08 3:25 AM | Report This Comment as Foul/Inappropriate

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