3/6/09

Post date: Mar 06, 2009 2:3:9 AM

Bell Ringer: Write a question that could appear on Monday's test. If I like your question enough to use it on the test, you'll receive 5 bonus points. (hint: I'm just a TINY bit goofy, and tend to like some of the sillier questions that still test over the material we've learned)

• • Review inclined plane problems

  • Work inclined plane examples

  • Finding the coefficient of friction using inclined planes

    • Place a weight on a plane that can be tilted upward

    • Slowly increase the angle of the plane until the weight just begins to slide

    • Measure the angle that the plane makes with horizontal

    • Measure the weight of the weight (that sounds strange)

    • Calculate the component of the weight that acts parallel to the plane at that angle, this is equal to the force of friction just before the weight begins to slide

    • Calculate the component of the weight that acts perpendicular to the plane at that angle, this is equal to the normal force.

    • Use the force of friction equation to find the coefficient of friction between the weight and the inclined plane.

  • Continue working on chapter 6 homework assignment