AP Physics Chapter 2 Answers

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AP Physics Chapter 2 Answers Homework 2.A 8) 300 m 9) 1.65 down 12) a) 1st trip 60 km/h; return trip 75 km/h b) 67 km/h 13) a) 0.50 m/s b) 8.3 min 16) a) 8.3 m/s b) zero 17) a) 2.7 cm/s b) 1.9 cm/s 20) a) AB  0; BC  3.0 m/s; CD  1.3 m/s; EF  -1.7 m/s; DE  -1.3 m/s; FG  0; BG  0.10 m/s b) c) 26) a) 12.5 s; 56.3 m from the initial position of the runner on left. 34) 6.9 m/s2 35) 3.7 s 38) 7.0 s 39) 0-4 s  2.0 m/s2; 4-10 s  0; 10-18 s  -1.0 m/s2

AP Physics Chapter 2 Answers Homework 2.B 46) a) 10 m/s b) 25 m 47) -3.5 m/s2 48) -3.1 m/s2 50) 5.14 s 52) a) 25 m b) 58) It takes the car 10.5 m to stop. 59) It takes the car 13.3 m to stop. 61) 96 m 70) 71) 72) a) -27 m/s b) -38 m/s 73) 15.9 m 74) 11 m 75) 67 m 80) a) -23.1 m b) 21.6 m/s downward