10/3/13, Thursday

Post date: Oct 04, 2013 1:4:25 PM

Bell Ringer

• • An elevator is lifted 25 meters at a constant velocity by a motor. If the elevator has a mass of 1250 kg, how much work is done by the motor? If it takes 23 seconds to lift the elevator, what is the power output of the motor? (Include a free body diagram with your answers)

Activities

• • Exchange lab journals and check against lab journal rubric

  • Discuss practice from page 162

  • Energy notes, practice

Practice

• • Page 166: 1-5

  • Page 168: 1-4