1. AP Chapter 3 Answers Homework 3.A 5) v = 5.0 m/s2 Ө = 53°
10) x = cm y = cm
11) x = 1.75 m; y = m
12) 2.5 m , 53° above the +x axis
15) 0.60 m/s
20) d
28) a) sketch b) 37 m at 17°
31) a) (-3.4cm) (-2.9 cm) ŷ b) 4.5 cm at 117°
c) (4.0 cm) (-6.9 cm) ŷ
42) 83.2 m at 2.0°

2. AP Chapter 3 Answers Homework 3.B
50) a) -30 km/h b) 30 km/h
52) a) +55 km/h b) -35 km/h
55) 4.0 min
58) 0.25 m/s at 37°
61) a) If the velocity of the rain with respect to the ground is vertical, and the velocity of the car with respect to the ground is horizontal, then due to vector addition, the velocity of the rain with respect to the car is at an angle.
b) 4.7 m/s
a) 0.64 s b) 0.96 m
2.7 x m
76) a) 51.8° b) directly over the impact point
78) a) 1.37 m b) 20.4 m
c) Kick the ball harder to increase vo and/or increase the angle to as close to 45° as possible.
79) a km b) 30.7 s c) 6.13 km

3. AP Chapter 3 Answers Homework 3.A 29 Questions Total Miss Score 0-5 10
6-8 9
>17 5