Table of Contents Table of Contents Page 49 pp Page 80 ecp #8 Page 50 Page 81 ecp #10 Page 52 Top Page 82 ecp #18 Page 52 pp #3 Page 82 ecp #20 Page 54 pp Page 82 ecp #21 Page 56 pp Page 83 ecp #22 Page 59 pp #1 Page 83 ecp #23 Page 59 pp #2 Page 84 ecp #24 Page 60 pp #3 Page 84 ecp #25 Page 60 pp #4 Page 85 ecp #27 Page 62 pp Car d-t. v-t, a-t Page 67 pp Page 55 v-t from d-t Page 69 pp

Adapted for CVCA Physics Chapter 2 Text Graphs Adapted for CVCA Physics by Dick Heckathorn 9 Sept 2K+2

Find the velocity in each section of the following position-time graph. ( - 2.5 0 10 -3.8 0 8.8 ) m/s Press Enter for answers. Page 49 pp

Find velocity for the two segments, then the average velocity. Page 50

Find the average velocity for B-C Find the average velocity for A-B Page 52 Top

Find the average velocity for each section. Page 52 pp #3

Find vinst when it is equal to zero. Find vinst for the points A, B, and C. Find the avg. velocity for 2.5 to 7.5 s. Find the average velocity for 1st 2.5 s. Page 54 pp

Calculate vavg for the 14 seconds. Where is the object at t=7.0 sec? Find vinst at t = 13 s. Calculate vavg for the 14 seconds. Where is the object at t=7.0 sec? 1.4 m/s 8 m/s -10 m Page 56 pp

Displacement from 3.0 to 5.0 sec? Vavg from t = 0 to t = 8.0 sec? Objects displacement in first 3.0 sec? Total displacement in 14 seconds? 200 m 17.5 m/s Page 59 pp #1

Find the total displacement. + 150 m Page 59 pp #2

At t = 0.4 h, which car is ahead and by how much? At t = 1.0 h, what is the distance separating the two cars? At what time do both cars have the same velocity? 0.68 h 25 km A: 27 km Page 60 pp #3

Determine total displacement for the 1st 12 sec. 505 m Page 60 pp #4

Determine the acceleration for each of the five unique intervals. B: 0 C: -2.0 m/s2 E: -1.0 m/s2 A: 2.0 m/s2 D: 0 Determine the acceleration for each of the five unique intervals. Page 62 pp

Find ainst at t = 25 s and t = 40 s. 0.57 m/s2 -0.37 m/s2 0.50 m/s2 0.70 m/s2 -0.30 m/s2 Find ainst at t = 25 s and t = 40 s. Find aavg for interval t = 0 to t = 25 sec and t = 30 to t = 50 sec. Find ainst at any instant in 1st 12 sec? Page 67 pp

Find velocity for each of the 3 intervals. 78 km/h -120 km/h Find velocity for each of the 3 intervals. Find vavg for the whole trip. Page 80 ecp #8

What sections represent uniform vel.? B C A -0.63 m/s D 1.4 m/s E 1.4 m/s 0.6 m/s What sections represent uniform vel.? What is vavg for t = 0 to t = 5.0 sec and for t = 15 to t = 20 sec? What sections represent at rest? What sections represent acceleration? What is vinst for t = 3.0 s, 24 sec, and for t = 8.0 sec. Page 81 ecp #10

How far does the car travel during the 13th sec? What is ainst at t = 12.5 sec and t = 22 s. How far does the car travel after 11 sec and after 25 sec? What is the acceleration in 1st 5 sec and from t = 11 to 14 sec. Where is the acceleration uniform? Where is the velocity uniform? B D A C 20 m/s2 60 m -10 m/s2 260 m 1300 m 6.0 m/s2 20 m/s2 Page 82 ecp #18

Find the total displacement. 430 m Page 82 ecp #20

How far up the board did the ball go? 4.5 s How far up the board did the ball go? When ball is at rest at top point? What is displacement over the 9 s trip? What is acc when ball is rolling down? What is acc when ball is rolling up? At what time is ball at highest point? -2.7 m/s2 1.2 m -2.7 m/s2 -2.7 m/s2 Page 82 ecp #21

What is vavg of train A for 1st 36 min? What is ainst of B at t = 0.30 hr? At t = 0.40 h, which is ahead? How much? What is aavg of A from t = 0.40 to t = 0.70 h? B ahead by 2.4 km 27 km/hr -20 km/h2 67 km/h2 Page 83 ecp #22

How far does the car travel in 1st 5 s, 1st 9 s, and 1st 13 s? 6.3 m/s2 -11 m/s2 How far does the car travel in 1st 5 s, 1st 9 s, and 1st 13 s? What is ainst at t = 3.0 s, 7.0 s, 11.0 s? 100 m 230 m 320 m Page 83 ecp #23

Find distance between A and B at t = 5.0 s? Find acc of B during final 3 sec. Find vavg of A in 1st 5 sec. Find ainst of A at t = 7.0 sec. 12 m/s 6.7 m/s2 -3.3 m/s2 2.5 m Page 84 ecp #24

Find vavg of police car for 1st 60 sec. Find distance between cars when t = 30 sec Prove that police car overtakes sports car when t = 60 s. Find acc of sports car at t = 30 s. 30 m/s 450 m -0.33 m/s2 Page 84 ecp #25

What was the maximum altitude? What was vterminal of capsule just before “splashdown”? What was happening from t = 300 to t = 400 s? What was aavg from t = 100 s to t = 300 s? What was acc of rocket during 1st two stages? At what time did rocket reach dmax? 200 s 88000 m -10 m/s2 5.0 m/s2 15 m/s2 -70 m/s Page 85 ecp #27

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