1. Essential Question:
What is the difference between angular speed and
linear velocity?
1

2. 2

3. 3

4. 4

5. 5

6. 6

7. Ex 4) A carousel with a 50­ft. diameter makes 4
revolutions in 1 minute. Find the angular speed
of the carousel and the linear speed of the
platform rim.
7

8. Degrees-Minutes-Seconds
8

9. Ex. 5) How far is it from San Francisco, CA
to Seattle, WA?
San Francisco Latitude: 37°47'36" N
Seattle Latitude: 47°37'18" N
Same Longitude
Earth: Sphere of radius 4000 miles
9

10. Assignment:
4.1B p. 291 #71-105 (odd)
10