Recent content by Frobar

I guess what I'm really having trouble with is the "translational" (as opposed to the rotation they cause) effect of forces not applied at the center of mass. Maybe problem 2 could be solved without dealing explicitly with this motion, but I would still like to get a better understanding of how...

It is a constant force that is perpendicular to the rod along the surface its lying on, applied at one of its ends. The rod is very thin by the way, if that matters. Could you elaborate on the w = 6J/mL step? I'm still very shaky when it comes to angular momentum.

Problem 1: I have a mathematical pendulum with a mass m connected to a string of length l. The pendulum is damped by air resistance that is proportional to the velocity, Ffric = -k*v. I need to derive the damping effect the air resistance has on the pendulum - that is, the decrease of the...

> Problem 2: Just to clarify you want to calculate the point at which if a > force is applied and the rod rotates slightly it will not be displaced? Yes, that's the point I'm after. > For problem 1 you don't need to consider the effect of the force on the > individual types of of energy...

Problem 1: I have a mathematical pendulum with a mass m connected to a string of length l. The pendulum is damped by air resistance that is proportional to the velocity, Ffric = -k*v. I need to derive the damping effect the air resistance has on the pendulum - that is, the decrease of the...