I'll be in my office Sunday 3-5; if you have questions, stop by.  You can also pick up your most recent problem set then.

There will be another SX presentation today:

Reminders/ hints-

• Draw free body diagrams!  Without this you are doomed to fail, no exceptions.
• Then apply Newtonís Second Law.
• See the instructions on page 82 of our text.

Today we'll continue to apply Newton's laws to various systems:

• Uniform circular motion (including the motion of the planets!)
• Other accelerating objects
• Air drag (a small does of reality)