We reviewed the homework.  Especially with the vector, relative velocity probelm (the plane flying in the wind), we considered the difference between flying North and letting the wind blow the plane East and flying some amount West of North so that with the wind the flight was due North.  We also finished the block on the incline problem.     

We discussed what would be one Test 1 (Next Thursday). We reviewed two circular-motion problems from Chapter 4 of Halliday, Resnick, & Walker. We examined a problem of a hanger on and a cart tied together by a string that passes over a pulley (as seen in lab) and derived the formula for its acceleration. We looked at a problem in which a block was pulled at an angle across a surface (no friction).