Power Formula & Net Work: Is It Possible?

localrob · 2010-12-15T05:18:52+00:00

Is it possible to use net work in the power formula? If a car accelerates from v1 to v2, can you use Power = Worknet / time And if Wnet = \DeltaKE Would Power = \DeltaKE / time ?

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...

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Thread 'Derivation of Hamilton's Principle: Questions'

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