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Rotate pulleys using gravity.

Started by jigar, November 21, 2006, 01:04:34 AM

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jigar

November 21, 2006, 01:04:34 AM
Cross section of pulley1, pulley2 , pulley3 and pulley4 are as shown in figure. Centres of  Pulley 1 and pulley 2 are placed on same horizontal line. Centres of pulley 1 and pulley 2 are fixed. Pulley 1 and pulley 2 can rotate about their centre. Centres of pulley3 and pulley4 are also placed on one horizontal line. Pulley 3 and pulley 4 can also rotate about their centre. Centre of pulley 3 and pulley4 are joined with one stationary plate.Pulley 3 and pulley4 are simply supported on pulley1 and pulley2.Now we apply some load or weight on stationary plate. Finaly this force is applied on pulley 1 and pulley 2 in vertical downward direction because pulley 3 and pulley4 are simply supported on pulley 1 and pulley2. Tengential componants of these force helps to rotate pulley1 , pulley2 , pulley3 and pulley4.

FreeEnergy

#1
November 21, 2006, 01:13:23 AM
um i really dont know about this one. seems like it will not work sorry. i could be wrong. you just got to build it and test it to see.

xpenzif

#2
January 19, 2007, 11:58:28 PM
The normal force vectors from pulleys 1&2 will point to the centers of pulleys 3&4. And a circular wheel doesn't spin when you apply a force perpendicular to the surface.
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