Assignment #2 Problems
For Exam 1, you will be expected to do problems of difficulty similar to those below without reference to the text or to any notes. Make sure that you can do this before you move on to the next assignment!
(1) Do Questions 1, 2, 8, 9, 10, and 12 on pp. 70-71 of Serway & Jewett.
(2) Do Problems 1, 2, 8, 10, 19, 22, 32, 44, and 51 on pp. 71-74 of Serway & Jewett.
(3) Consider a three dimensional vector . Explain how multiplying this vector by the number 9 will affect
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The x-component of the vector |
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The magnitude of the vector |
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The angle of the vector with respect to the x-axis. |
(4) As we have discussed in class, the distance, d, that an object released from rest will fall in time t is given by the expression: d = (1/2)gt2 , where g is the acceleration due to gravity. Suppose that we know that g = 9.80 ± 0.04 m/s2 and that t = 3.0 ± 0.1 s. Determine the distance, d, that the object fell, including the uncertainties in your result, using the method explained in Appendix B.8 of Serway & Jewett.
(5) Using the left and bottom sides of this sheet of paper as the y and x axes, respectively, decompose the vector drawn below into x and y components.
(6) Using the same axes as described in part (5) above, give the magnitude and direction of the vector drawn below.
