CH 3

2 dimensional vector components (eqn's 3.2, 3.3, 3.40

Addition/subtraction of vectors (which type can be added to which type, etc.)

Acceleration as "change" in velocity meaning change in either magnitude, direction, or both

Everything about "projectile" motion

Independence of horizontal and vertical motion during "projectile" motion

Relative velocity as a "vector addition" problem

Note again the same equations of motion as for CH 2

CH 4

Definition of Force

Newton's 3 laws of motion (know explanation and application of each)

Inertia versus mass

Weight versus mass

Balanced versus unbalanced forces (equilibrium)

General Types of forces

Normal force

Fricitional forces (how to include in problem)

Be able to explain how Newton's 3 laws of motion apply in a force example

(remember all 3 laws are always present)