29:011 Summer 2011 Assignments

The assignments will not be collected and graded, however doing the assignments is essential to learning the course material. Physics is learned through application of the principles by problem solving. This requires that you at least attempt to work the problems. The solutions to the assignments will also be posted on this page a few days after the assignment is made. It is important to know that reading the solutions is not a substitute for trying to first do the problems on you own. Some of the exam questions may be similar to those that are assigned.

A note on significant figures. I am not so concerned with significant figures and this will not be an issue on exam problems. The correct answers will be clear and you will not have to choose answers based on significant figures. The answers that are given for the homework problems may have been rounded, so your answer may not be exactly the same as the posted one. The method of solution is more important that the number of significant digits in the final answer.

Note that answers to the odd numbered problems are given in the back of the book. I will post the answers to even numbered problems here when the problems are posted.

Chapter 1 Problems
4, 6, 9, 18, 28, 38, 49, 54, 57, 62, 64. even # answers  solutions

Chapter 2 Problems
7, 9, 18, 19, 24, 37, 38, 44, 50, 55, 62, 66, 77, 83. even # answers  solutions

Chapter 3 Problems
3, 21, 24 (ans. 3.4 m), 27, 31, 35, 37, 39, 44 (ans. 53 m), 73 solutions

Chapter 4 Problems
Part 1:  3, 11, 14 (+1.2 m/s² upward), 15, 25, 27, 29, 32 (2.25x10^-10 m/s²), 35  solutions
Part 2:  43, 45, 51, 55, 61, 71, 79, 85, 92 (g tan[thetaq]), 1.73 m/s², zero), 112 (400 N) solutions

Chapter 5 Problems
7, 11, 21, 23, 29, 30 (45 s), 33, 35, 36 (27.5 days), 53  solutions

Chapter 6 Problems
9, 12 (2.07x10³ N), 17, 23, 25, 33, 40, 47, 57, 67, 82, 84 (2.4 m/s) solutions

Chapter 7 Problems
6 (11, 622 N), 11, 17, 18 (7.5 m/s), 21, 25, 30 (6.8 m/s, 18 m/s), 31, 32 (14 m/s), 33, 39 solutions

Chapter 8 Problems
3, 11, 16 (336 m/s), 21, 25, 37, 39, 43, 49, 51 solutions

Chapter 9 Problems
3, 5, 9, 12 (0.7 m), 15, 18 (189 N, 28 N), 27, 32 (-11 Nm, -9.2 rad/s²), 35, 43, 47, 49, 55, 57, 59, 60 (0.037 rad/s), 66 (14 rad/s), 77 solutions

Chapter 10 Problems
5, 10 (0.78), 11, 13, 17, 18 (0.08, 1.57, 2, 0, 0.2), 45, 46 (0.13), 74 (30,000) solutions

Chapter 11 Problems

Part 1: 7, 9, 11, 15, 20 (1.2x10⁶ N), 23, 27, 31, 37, 38 (0.057 m), 40 (5500 N), 43, 48 (3.8 m/s²), 94 (2.7x10^-4), 97  solutions
Part 2: 54 (2.52 m/s), 55, 57, 59, 61, 63, 69, 71, 101 solutions

Chapter 12 Problems

3, 4 (105.4), 7, 11, 15, 19, 35, 45, 53, 57, 59, 67, 71, 85 solutions

Chapter 13 Problems

1, 3, 9, 13, 15, 20 (0.37), 21, 24 (275 W), 29, 39 solutions

Chapter 14 Problems

2 (1.3 x 10²¹, 5.8 x 10²⁰), 3, 4, 7, 9, 11, 13, 15, 19, 23, 35, 37, 39, 41 solutions

Chapter 15 Problems

1, 3, 5, 6 (436 K), 11, 13, 15, 20 (+5000, -5000), 23, 45, 47, 49, 51, 53, 55, 83 solutions

Chapter 16 Problems

3, 7, 13, 17, 25, 26 [0.01 m sin(31t -157x)], 27, 29, 35, 41, 47, 53, 55, 63, 65, 67,
21 (6.5x10^-3 J), 73 solutions