PHYS 2101 Lecture : Lecture 22
Document Summary
Announcements march 12, 2012 monday (22nd: hw is due tomorrow night (tuesday) : mostly angular momentum and some statics (last half of chapt. 1) vector sum of all external forces that act on the body must be zero. 2) vector sum of all external torques that act on the body, measured about any possible point, must also be zero. 12 statics (prof. zhang will be pinch hitting for me : wed & friday: gravitation. A stationary 5 kg rod ac is held against a wall by a rope and friction between the rod and the wall. The uniform rod is 1 m long and = 30 . (a) A diver of weight 800 n stands on the end of a 4. 5 m diving board of negligible mass. he board is attached to two pedestals 1. 5 m apart. A small aluminum bar is attached to the side of a building with a hinge.
