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Conservation of Momentum


10 questions

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  • 1. Multiple Choice
    5 minutes
    1 pt
    While playing pool, the white cue ball strikes the 8 ball. Before the collision, the cue ball's velocity was 10 m/s and the 8 ball was at rest. If both ball's have a mass of 0.15 kg and the cue ball's velocity after the collision is 2 m/s, what is the 8 ball's velocity?
    2 m/s
    8 m/s
    -2 m/s
    1.5 m/s
  • 2. Multiple Choice
    5 minutes
    1 pt
    In a physics experiment, two carts of mass 1.5 kg each are rolled towards each other.  The orange cart has a velocity of 2 m/s and the blue cart has a velocity of -1m/s.  The carts stick together when they collide.  Calculate their final speed.
    0.5 m/s
    1.0 m/s
    0.33 m/s
    0.67 m/s
  • 3. Multiple Choice
    5 minutes
    1 pt
    Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:
    2 m/s 
    3.4 m/s 
    4.6 m/s 
    7.1 m/s
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