2/16/11

Post date: Feb 15, 2011 8:49:16 PM

• • Bell ringer: A 105 kg sofa is at rest on carpet, where it has a coefficient of static friction of 0.850 and a coefficient of kinetic friction of 0.685. A person pushes on the sofa with a force of 865 N. What is the acceleration of the sofa?

• Friction Lab

  • • Add to the friction lab: With your group, come up with a method for measuring the coefficient of friction between the hovercraft and the ground. Carry out your experiment. Write out your procedure, data, and calculations on a separate sheet of paper. In case you need it, the mass of the hovercraft (without a rider) is 25 kg.

    • Due Friday