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Old Nov 15, 2012, 11:33 PM
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Originally Posted by HX3D014 View Post
Shoe, There are different types of Momentum in the conservation of Evergy analogies.
One is translational and one is Angular.
When Newton says that an object's rate of momentum change is equal to the unbalanced force acting on it, he is referring to the object's linear (or translational) momentum, not it's angular momentum.

I don't think anyone has yet tried to suggest that the lift force acting on a wing is equal to the air's rate of angular momentum change (or the air's rate of energy change).
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Last edited by ShoeDLG; Nov 15, 2012 at 11:41 PM.
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