7 thoughts on “Homework H.4.G”

  1. How would we go about turning the ds integral from the work energy equation into something more useful? I'm trying to use the angle of the collar wrt the center of the arc to calculate the work but I'm having trouble setting up the integral.

      1. Ok, due to the nature of the force F, I need a theta value to get the projection of F onto the path unit vector. If I translate to polar coordinates and use e^theta could I just change the ds into a dtheta?

        1. The equation is formed to indicate that only displacement along e_t direction will be dotted with no conservative force. And it’s usually expressed in Cartesian. You may refer to the example on P214.

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