Kinematics

Hello !

Today in class we did quite a bunch of things. One of which was correcting Appendix 3.6: Describing Motion in Various Ways

Appendix 3.6: Describing Motion in Various Ways:

I'm pretty sure that people made some minor mistakes because of the "ohhh!" reactions and "that's how it is!" responses after Mrs. K told us the answers. I think the tricky part of the whole thing was the l ast two questions. (Question 4 letters e and f)

e) What is the total displacement for the student's journey? Find this from the graph.
I'm pretty sure most of got the right numeric answer (5m) but must of us missed the minor things that makes all the difference. First of all, this one needs a direction [south] and since it's going in the southerly direction, it is negative. Therefore you can either put your answer in the form 5m [south] OR -5m to show the negative.

f) What is the average velocity for the whole journey?
Average velocity can be calculated using the formula v = d/t
The tricky part of this question is the same as the last question. Basically the possible minor errors that can occur can lose you a mark!
answer: .1 m/s [s] OR -.1 m/s
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Aside from correcting the worksheet, Mrs. Kozoriz left us with other work to do. Those are all for homework (Position-Time Graphs, Chapter 3 Study Guide and Study Guide 5.1 Graphing Motion in One Dimension)

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