Homework 5
For practice only -- does not need to be turned in
Textbook Problems, Chapter 4
Conceptual Questions (p. 119): 5
Problems (p. 121): 1, 2, 12, 18, 23, 26, 90
Brief Answers
Conceptual Questions
5. No. If two or more forces are applied to an object, they could add to zero (i.e., no net force) resulting in zero acceleration.

Problems
1. 93N in the same direction as the force on the plane
2. 0.103 m/s2 in the direction of motion
12. -1.20 m/s2
18. 8.70x10-12 N
23. (a) 10.5 m/s2 (b) 1.07
26. 3.9 m/s2
90 (a) 1040 N (b) 1040 N (c) 2.4 m/s2 (d) 1.7x10-22 m/s2