solutions
review notes

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department
r.u. camden

One of the most useful ways of studying this material is by solving the problems at the chapter ends. Sometimes this may seem difficult, but it gets you to think about the material in a more analytical way than almost any other approach. You should try at least ten problems a day. I shall select five problems each day and the solutions to them will be available later. Choose other problems that look interesting to you. Of the five problems that I select, two will be assigned to be handed in the next day, to be graded. Purely to make the grading feasible in the short time available, we shall use the following system: 1) You will be assigned an individual number in the first class. 2) Each assigned problem will use that number to generate an individual numerical problem for each of you. For example, if the problem listed in the text book says "reaches a speed of 3.2 m/s", you might be instructed to use a speed of (2 + n / 20) m/s, where n is your number. 3) Solve the problem using your individual value, and write the answer on a 3 5 file card. Give the answer to five decimal places (however many significant figures were used in the problem). Also put on the card your name and your assigned number. The solution MUST be handed in on the next class day. No late solutions will be accepted, and the homework problems count for 20% of the grade.

Chapter 1: problems 7, 10, 18, 26, 52 Problem 26 is to be handed in. Replace the value 7.41 km with (6+n/10) km.

Chapter 2: problems 8, 34, 52, 60, 64 Problem 8 is to be handed in. Replace 26 m with (20+n) m.

Chapter 3: problems 6, 15, 28, 47, 54 Problem 28 is to be handed in with 670 m/s replaced with (500+6 n) m/s, and problem 54, with 8.70 m/s replaced with (8+.02 n) m/s.

Chapter 4: problems 6, 16, 28, 38, 52. Problem 6 is to be handed in with 0.95 s replaced with (0.5+.01 n) s, and problem 52 with 8.00 replaced with (4.00+0.12 n).

Chapter 5: problems 2, 14, 22, 30, 38. Problem 2 is to be handed in, with 21 m/s replaced with (15+0.1 n) m/s, and problem 22 with 25 m/s replaced with (20 + 0.2 n) m/s.

Chapter 6: problems 3, 15, 32, 52, 60. Problem 15 is assigned with 5.30 m/s replaced with (4 + 0.1 n) m/s in both places, and problem 32 with 14.6 degrees replaced with (10 + .25 n) degrees.

Chapter 7: problems 2, 10, 19, 30, 41. Problem 19 is assigned with 1550 kg replaced with (1200 + 10 n) kg.

Chapter 8: problems 12, 19, 24, 31, 42. Problem 19 is assigned with 1800 rad/s replaced with (1500 + 10 n) rad/s.

Chapter 9: problems 3, 12, 31, 46, 58. Problem 3 is assigned with 110 N replaced with (60 + n) N, and problem 31 with 7.0 rad/s^2 replaced with (4.0 + 0.1 n) rad/s^2.

Chapter 10: problems 4, 8, 28, 43, 50. Problem 4 is assigned with 0.10 replaced with (0.08 + 0.001 n), and problem 43 with 5.00 Hz replaced with (6.00 + 0.1 n) Hz.

Chapter 11: problems 7, 13, 17, 42, 55. Problem 17 is assigned with 0.500 m replaced with (0.200 + .05 n) m.

Chapter 12: problems 7, 11, 20, 37, 46. Problem 11 is assigned with 370 m replaced with (400 + n) m, and problem 46 with .850 kg replaced with (0.600 + .01 n) kg.

Chapter 13: problems 5, 7, 12, 18, 20, 26. Problem 7 is assigned with 15 mm replaced with (10 + .1 n) mm, and problem 18 with 0.36 replaced with (0.20 + 0.01n).

Chapter 14: No problems were assigned.

Chapter 15: problems 3, 14, 24, 47, 75. Problem 3 is assigned with 6200 J replaced with (5000 + 100 n) J, and problem 15-47 with 950 m replaced with (900 + 2 n) m.

Chapter 16: problems 8, 18, 57, 66, 80. Problem 18 is assigned with .020 kg/m replaced with (0.0100 + .0002 n) kg/m, and problem 80 with 508 Hz replaced with (490 + n) Hz.

Chapter 17: problems 5, 19, 27, 30, 48. Problem 19 is assigned with 0.776 m replaced with (0.771 + .0002 n) m, and problem 27 with 0.62 m replaced with (0.56 + .003 n) m.