1. SMDEP Physics Kinematics

2. Ch. 3, #9(a) 1.476 km/h N, -421 km/h W 2.476 km/h N, 421 km/h W 3.476 km/h N, 159 km/h W 4.476 km/h N, -159 km/h W 5.Other 6.Didn’t finish

3. Ch. 3, #9(b) 1.476 km N, -421 km W 2.1428 km N, 2435 km W 3.1428 km N, 477 km W 4.1428 km N, -477 km W 5.Other 6.Didn’t finish

4. Ch. 3, #16(a) What are the components (x,y,z)? 1.3905m, -2393m, 2450 m 2.3905m, 2393m, 2450m 3.3905m, 675m, 2450m 4.3905m, -675m, 2450m 5.Other 6.Didn’t finish

5. Ch. 3, #16(b) What is the magnitude of the vector? 1.8748 m 2.5748 m 3.5194 m 4.7030 m 5.Other 6.Didn’t finish

6. Ch. 3, #22(a)? 1.-1.90 m/s 2 2.1.90 m/s 2 3.3.29 m/s 2 4.-3.29 m/s 2 5.Other 6.Didn’t finish

7. Ch. 3, #22(b)? 1.12.3 s 2.10.1 s 3.11.5 s 4.16.2 s 5.Other 6.Didn’t finish

8. The homework problems for today were… 1.Way too difficult – I was up all night 2.Moderately difficult 3.Somewhat difficult 4.easy 5.Way too easy

9. Attendance: What is your favorite sport ? 1.baseball 2.basketball 3.soccer 4.football 5.Curling 6.other

10. position time Train

11. A train car moves along a straight track. The (previous) graph shows the position as a function of time for the train. Which of the following is true? 1.The train speeds up all the time 2.The train slows down all the time 3.The train speeds up part of the time and slows down part of the time 4.The train moves at constant velocity

12. Demo: Which ball hits the ground first? 1.dropped ball 2.kicked ball 3.same time