Using Elastic Potential Energy in Energy Conservation Problems

Today we basically did several examples of energy problems that include springs:

Notes: Elastic Potential Energy and Energy Conservation

At the end of the period I asked you to finish Energy TIPERs #6, then we checked it together and you kept it. Please do not turn that in.

Homework tonight: p.160 #35, 39, 67. We will do one in class together tomorrow.

Here is the solution to the last problem in the notes: