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Old 12-04-2010, 12:30 AM
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CJ3Flyr CJ3Flyr is offline
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CJ3Flyr CJ3Flyr is offline
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Join Date: Jan 2008
Location: Metro ATL & Cape Coral, FL
Age: 62
Posts: 6,276
CJ3Flyr will become famous soon enough
Quote:
Originally Posted by eskimochaos View Post
Tires on the ground dont do any work either. The velocity between the tire and the road surface while moving is 0. W = F*d. d=0, work = 0.
Quote:
Originally Posted by Doozi View Post
Don't forget about the angle between the force and the displacement vector. W= F*d*cos(theta). The tire may not be moving the road surface (although I have seen that), but there is a vectored force applied and your vehicle moves as a result.

Anyway... this isn't a physics lesson... I'm mearly trying to offer an alternative explanation.

~Doozi
I'm such a geek! I love talk like this
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