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  • 3 years ago

consider the action from t=0 to t=1 of a ball dropped from rest. From the Euler Lagrange equation we know that y(t) = -gt^2/2 yields a stationary value of the action. Show explicitly that the particular function y(t) = -gt^2/2+Et(t-1) yields an action that has no first order dependance on E

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