PHYS 1111 - Introductory Physics I
Chapter 9 - Linear Momentum and Collisions

Study Assignment:

Chapter 9, Sections 9.1 - 9.6

Lesson notes:

The second major conservation law of mechanics will be introduced in this chapter. In combination with the law of conservation of energy, conservation of linear momentum allows the analysis of interactions between objects ranging in size from elementary particles to galaxies. We will apply the law of conservation of linear momentum to the problem of collisions in two-dimensions.

Objectives:

1. Understand the relationship between impulse and momentum, and be able to calculate the magnitudes of forces that occur in collisions.

2. Understand that conservation of linear momentum is a consequence of the application of Newton's Second and Third laws to a system of particles.

3. Be able to apply the principle of conservation of linear momentum to collisions.

4. Be able to write and apply the law of conservation of linear momentum in component form in collision problems.

5. Be able to solve collision problems involving glancing collisions in two-dimensions.

Vocabulary:

impulse
time-average force
linear momentum
elastic collision
inelastic collision
perfectly inelastic collision

Homework:

See the homework solutions page here.

Last update: January 07, 2011