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Dear all
I need to know the physical meaning of first derivative of linear momentum and angular momentum in Kirchhoff's equations of momentum conservation.
I mean for example the first derivative of position refers to the velocity while the second refers to the acceleration. But what is the meaning of first derivative of momentum????
The first derivative of linear momentum is Force.
The first derivative of angular momentum is torque.
(derivative with respect to time).
hope it helps you.
