Wednesday, Dec 3, 2008 - Blocks 1 and 3

On RA 5.3 went over questions dealing with conservation of momentum in elastic and inelastic collisions. Momentum is conserved in BOTH types of collisions as long as there is NO net external force.

Went over definition of Conservation of Momentum. In the case of a falling object, it doesn't apply since there is an external force.

Did problem of inelastic collision in 2-D

Answered questions from homework problem set.

Gave momentum quiz

Showed part of Hewitt video on momentum dealing with boxing.

Students counted off by 4 and did assigned exercises and problems from end of chapter.

Tomorrow is the last day to hand in CD ch 5.