**Q2: **

The coordinates of a particle in a rectangular coordinate system are . What is the position vector of the particle?

- A
- B
- C
- D
- E

**Q4: **

Two points in a plane have polar coordinates and .

Determine the Cartesian coordinates of .

- A (2.115 m, 1.210 m)
- B (2.225 m, 1.150 m)
- C (2.100 m, 1.050 m)
- D (2.165 m, 1.250 m)
- E (2.265 m, 1.130 m)

Determine the Cartesian coordinates of .

- A ( m, 3.290 m)
- B ( m, 3.095 m)
- C ( m, 3.050 m)
- D ( m, 3.140 m)
- E ( m, 3.000 m)

Determine the distance between the points, to the nearest centimeter.

**Q5: **

A circular polar orbit around Earth is an orbit that passes directly overhead at both the North Pole and the South Pole. A satellite in a circular polar orbit around Earth at an altitude of 400 km moves in its orbit form a point that is directly over the North Pole to a point that is at a latitude of . In determining the motion of the satellite, use a value of km for the radius of Earth.

What is the magnitude of the displacement vector from to ?

At what angle below east is the direction of the displacement vector from to ?

**Q6: **

Under which conditions should coriolis acceleration be considered?

- Awhen linearly accelerating reference frames are used
- Bwhen translating reference frames are used
- Cwhen fixed reference frames are used
- Dwhen rotating reference frames are used
- Ewhen co-moving reference frames are used

**Q7: **

A student is trying to determine the acceleration of a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

- AThe floor should be a coordinate of zero, and the upward direction should be considered positive.
- BHer hand should be a coordinate of zero, and the upward direction should be considered positive.
- CThe floor should be a coordinate of zero, and the downward direction should be considered negative.
- DHer hand should be a coordinate of zero, and the downward direction should be considered positive.