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Post date: Jan 28, 2010 1:29:30 PM

Bell Ringer: A train is moving at 65 m/s when the conductor spots a dementor ahead. He pulls the brake and the train accelerates at -2.5 m/s/s. How long does it take the train to stop?

• • Acceleration estimates

    • From the movie clip, estimate vi, vf, and t for 10 different events and calculate the acceleration of each

  • Continue chapter 4 notes

• HW: Page 69: 9-11