4/13/2010

Post date: Apr 12, 2010 6:56:17 PM

Bell Ringer: Cy the kitty chases a soccer ball, then slides and crashes into it. Cy (3.20 kg) was initially running at 4.65 m/sec. When he began to slide, the force of friction slowing him down was 4.75 N and he slid for 1.35 seconds. He then crashed into the 2.15 kg and came to rest due to the collision. How fast did the ball move after the collision?

• • Discuss calculations for rocket launches

  • Review for momentum test (not to be collected): pages 192-195

    • Reviewing concepts: 1, 4, 6

    • Applying concepts: 2, 5, 10

    • Problems: 2, 4, 10, 16, 20, 29