Recent content by math_head7

Thanks. I got it.

Angular Momentum Question? Homework Statement Figure 11-45 (attached) shows a rigid structure consisting of a circular hoop of radius R and mass m, and a square made of four thin bars, each of length R and mass m. The rigid structure rotates at a constant speed about a vertical axis, with a...

Thanks tiny-tim. I didn't consider at all that θ was changing. Thanks to that advice I was able to figure it out.

Homework Statement A cord is attached to a cart that can slide along a frictionless horizontal rail aligned along an x axis. The left end of the cord is pulled over a pulley, or negligible mass and friction and at cord height h = 1.20m, so the cart slides from x1 = 3.00m to x2 = 1.00m. During...