PHYSICS: Great job on the vertical circular motion problems! Since I recorded Friday’s lesson on top of a chemistry lesson, I’m posting an old lecture on finding V-min. (Remember, V-min for vertical circular motion, V-max for horizontal circular motion.) There are also a couple of new centripetal force problems at the end. BTW – how are the cars coming?

When is our test??

About how many weeks do we have until the cars are due?

are there are v max’s and v min’s for both horizontal and vertical circular motion?

Ms. Skinner,

Have we settled on a date for the cars to be due?

Sebastian – Yes, it’s on the syllabus. Feb. 13, you have to bring in a car that runs. Feb. 14 – THE RACE!

What is the difference between centripetal and centrifugal force?

May we have a help session sometime this week before Friday?

May I bring the supplies for my car to class so I can ask for approval for a couple of materials?

Jakin – Sure!

Can we have a help session thurdsay morning? or friday morning?

Jackson – Works for me. Either day is okay, just let me know.