The Moment Of Truth III

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  • 1. The Moment of Truth Work & Momentum Physics Semester I 2008-2009 Mrs. Kuzara
  • 2. Work
    • A roller coaster cart is at the top of a 40m hill going 5m/s. How fast is the cart going when it is at the top of the second hill (which is 20m high)?
        • 20.4m/s
  • 3. Momentum
    • A 1850kg car is stopped at a traffic light and is hit from the rear by a 975kg car. The two cars become entangled. If the smaller car was moving at 22.0m/s north before the collision, what is the velocity of the cars after the collision?
        • 7.59m/s north