Recent content by DrChicken

Since the springs are in parallel, they will both have the same displacement. Knowing this and examining the equation for the restoring force of the spring you can find that: F = kx F = k1x + k2x = (k1+k2)x Keeping the second equation in the same "form" as the first, k = k1 + k2...

I didn't see the attached image, so here is a link to an image host: http://i.imgur.com/5sg8y.jpg

Homework Statement I included the problem as an attachment. My difficulty lies within understanding how to account for the applied torque within the Lagrangian and subsequent Euler-Lagrange equations, which is what I want to use to determine the equations of motion of the bead on the hoop...