How can we find the coefficient of kinetic friction with only a meter stick and a balance?

posted Sep 30, 2017, 5:00 PM by Barbara Fortunato   [ updated Sep 30, 2017, 5:04 PM ]
2: Th 10/7 lab, 4: F 10/8 lab

Today, we'll continue review of last year's material by doing a lab. You'll need to find the coefficient of kinetic friction between a wooden block and the lab table. The only measurement devices are a meter stick and a balance. You cannot use any timing devices or motion sensors.  You'll focus on work lost to a non-conservative force.  If you finish early, you should try to find an expression for the coefficient using another method - Newton's Laws.  

Homework:  Make sure your "lab write-up" is in your journal.  It's not a formal write-up.  Give it a title and make sure you have a labeled diagram of what you measured.  Make sure to have some "before-and-after diagrams."  Then just your measurements and calculations.