Rotation 1: Skill Set Memorize and correctly apply relation between linear and angular motion. (Check units to be sure!) Understand moment of inertia. “Memorize” it for a hoop. Judge what mass distribution gives a big I or a small I. Use conservation of energy with rotational K to solve problems like falling masses+pulleys, or objects doing loop-the-loop Apply the parallel axis theorem appropriately, when it is valid. (Axes parallel, one through cm.)

A hunter leaves camp, hikes 10 mi due East, and then 10 mi due North. She shoots a bear. She then hikes back to camp, 10 mi due South. What color was the bear? A] Brown B] Black C] White D] There is no possible bear with the problem as written Rotations are like translations on a sphere. They are well- behaved vectors for small displacements / angles. Polar Bear!

Torque caused by F 3 is not 0 about point A

Multiply (component of force that is perpendicular to r) x r. Multiply total force by (component of r that is perpendicular to F.)