Conceptual Physics

Answers to selected problems

Chapter 4 Answers

C.3 On the Moon

Answers vary

C.5 (a) The speed of the river

(b) North

(c) No

0.1 (a) No

(b) The speed increases

1.1 (38.8,29.2) m/s

1.3 (108, 40.3) m/s

2.1 (a) (1.0, 4.0) m/s^2

(b) (0.0, 5.0) m/s

2.3 ( 180, -3.75) m/s

2.5 (0.73, 1.3) m

3.1 (a) 0.64 s

(b) 33 m/s

3.3 1.20 s

3.5 66.5 m

3.7 (a) 10.5 s

(b) 284 m

(c) í29.3 m/s

(d) 39.8 m/s

3.9 b

3.11 1.07 s

3.13 1 to 9

5.1 At the professor's glove

Answers vary

7.1 -6.06 m/s

7.3 11.0 m/s

7.5 ( 2.36, 14.5) m/s

9.1 At the professor's glove

Answers vary

10.1 24.4°

10.3 ( 9.29, 20.6) m/s

10.4 35.3 m/s

10.6 (a) 1100 m/s

(b) 49.3°

10.8 4.07 s

10.10(a) 1.93 m

(b) 2.29 s

13.1 3.1 m/s

15.1 8.0 m/s

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