**Chapter 3 Test Information **
- Test format:
- 4 short answer
- 8 multiple choice, including basic vector problems
(adding vectors to get resultant magnitude and direction,
resolving vector into components)

- 2 River problems (2-3 parts each) -- Constant velocity in 2 dimensions
- 3 Projectile Problems (2-4 parts each) -- Kinematics
in 2-D with acceleration due to gravity.

- Sources for Similar Problems/Questions:

- Some Important Concepts:
- Memorize -- 1m/s ≈
2.24mph.
- Add vectors head-to-tail
- Determine the magnitude and direction of a vector, given
its components (e.g.
"degrees above +X" or "degrees north of west")
- Find the missing vector using the concept of head-to
tail addition
- "River problems"
- Identifying the resultant and component vectors
- Solve for one of these: current or wind speed and/or
direction, object speed and heading relative to water or
air, actual object velocity relative to the earth

- Motion in terms of x and y...
- Remember the independence of x and y components of
projectile behavior
- Resolving a vector into x and y components
- Adding x and y vectors to get a magnitude and
direction of a resultant
- SohCahToa
- Finding angles with inverse functions.

- Narrate what happens to v
_{x} and v_{y}
at all points during the flight of a projectile and explain
why.
- Determine the following for a projectile:
- x or y displacement (given initial
direction, initial velocity, and initial position)
- time aloft
- x or y velocity
- speed and direction

- Provided formulas:
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