Wow, last week of classes. We will review material while exploring new questions. Additionally, we will add trigonometry and you will be allowed to use the two kinematic formulas that most classes introduce in the first week of classes, now that you are able to solve questions without these formulas.
Monday
- Please see Precession by Veritassium , a super professionally made video. You’ll let me know if it’s more helpful than my video.
- PS #9 due Today. Please finish it up.
- PS #10 posted on main class website. Please check out all the problems and think about how you’ll do them.
- Please check my evaluation of your website – on the website page. I’m almost done with all the videos… Probably I’ll be done by 10 AM
- Please see: Big Picture Rotation Video that includes precession.
- See work on an inclined plane video.
- Thanks for our discussion Thursday regarding the Paris Agreement. I referred to a letter I wrote to our commissioners regarding green innovation and the California Economy. Read it if you like.
During Class
We’ve got a week to review and work some problems.
Tuesday
Before Class
- Please see the feedback for your video on our video page. Please also see two other videos from your colleagues and read my feedback for them. Let me (and them) know if I missed anything or got something wrong. Please figure out with your group what your response is going to be: Write up some corrections or responses or rebuttals, change the video, make a new better video of the same project, change to a different project and make a whole new video. If there are serious problems with your video, you have until Saturday night June 10 to correct the problem and get back to me about it.
- See Trigonometry Video , now you’re allowed to use trigonometry, but remember you can also always draw a picture if you’re not sure.
- See Kinematics Video and then you’re allowed to use those two unhelpful (in my opinion) equations, although hopefully, you’ve realized by now that you can get along without them just fine.
- Please do the forth mechanics concept survey
- Optional: Here is an old precession video I made a few years ago. It’s long and slow with lousy graphics, but it has over 3000 views, so some people found it helpful: Pete’s OLD Precession Video
During Class
- finding coefficient of friction… no Big Exam, we have too much to do
After Class
Wednesday
Before Class
- See video on Fuzzy Dice
- Watch this video: Spinning Skater What are the forces on a skater’s arms when she is spinning very fast?
- Make sure you look at PS #? Solving flywheel with hanging mass This video is from winter quarter, 2016 so the problem number is different.
- Solving the Ladder Problem, this is from winter quarter 2016, so the number of the problem is different
- See a video from last quarter regarding trebuchet.
- Also see this from BurningMan
- See Firehose Video
In Class:
Falling off a ladder.
Going over
After Class
Thursday: Last Day of Class: Bring your bike to class day!!
first hour
Before Class
- Surveys: Please take the university survey for this class. The link was sent to you via Email.
- Bicycle Transmission,
- See video from your colleagues Toy Car Catapult
- Solutions for PS#9 posted, Solutions for PS#10 posted
- Please see assigned videos for Tuesday if you didn’t get to see them already. I’ve made the deadline Friday (tomorrow).
- Please do this fifth and final mechanics concept survey!
- Hey in doing the last question on PS#10, remember that the disks were at a radius of 20 cm from the center of the spinning wheel, and moved 60 cm horizontally as they fell 110 cm to the floor. Also remember that the slide when the surface was inclined about 20 degrees with respect to the horizontal.
In Class:
- Course Redesign
- Bring your bike to class day! we explore bicycle transmission.
After Class
See video on solution for 2D inelastic collision from a problem set from years past.