Homework #2

Same drill as last time. A few questions and about a dozen problems. The full version of the homework has lot of figures in it and is also copied directly out of the book and so presents copyright issues to post on a web site. Thus I have put up only the problem numbers here. However, I have posted the full text with figures on the Blackboard site for the course. I would suggest that you only print that out if you need it--it is LONG.

Again, as we get into the problems, remember that I don't normally set any type I problems, which are the simplest kind of drill problems. You might still find such problems useful. If you are having trouble with a type II (or III when I get nasty) problem, sometimes looking at a couple of the solved type I problems in the same section can help direct your thinking.

Remember that these are due in class on Friday Sept. 10th.

NOTE I have split the assignment into two parts which I would like you to hand in on separate sets of paper so that I can give one part to each of the two graders.

Part I

4Q3) NOTE An example or two would make a lot of sense here.

4Q5)

3P8), 3P12)

3P20) NOTE First you have to ignore the fact that the artist drew an oriel window for dear Juliet and assume that the window lies directly above the base of the wall. Second you need to think about splitting the problem up into its horizontal and vertical components.

3P37)

3P41) and 3P42) Really two parts of the same problem but with twice as much credit.

Part II

3Q14)

3Q16) NOTE I would expect the answer to this to include one or, more probably, two diagrams.

2P40) NOTE The wording of this often causes problems so let me say a little. The first second is from t = 0 to t = 1s. The next second is from t=1s to t=2s, etc.. So Galileo says that the distance travelled between t=1s and t=2s should be 3 times the distance travelled between t=0s and t=1s and so on for all the rest of the sequence.

2P42).

3P30) and 3P31) NOTE These two have a lot of pieces. That does not make them harder. It just means that there are more little pieces. Often, though not always, the later parts will use results from the earlier parts.

3P57) and 3P68).