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Velocity in Collisions

  1. Apr 11, 2008 #1
    True or False: In a collision between a small car and a large truck, the car and the truck undergo the same change in velocities.

    False- mor mass more change in velocity

    right??
     
  2. jcsd
  3. Apr 11, 2008 #2

    Shooting Star

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    You have not explained how you got that. But do you remember conservation of linear momentum?
     
  4. Apr 11, 2008 #3
    well the massive truck will have more of a change in velocity than the small car since more mass means more change in velocity.

    Right???
     
  5. Apr 11, 2008 #4

    tiny-tim

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    erm … if a 100 ton truck at 50 mph hits a roller-skate at 0 mph, which changes speed more? :rolleyes:
     
  6. Apr 11, 2008 #5
    right
    so the car and truck do not change velocities at the same rate, which makes the origional statement false.
     
  7. Apr 11, 2008 #6

    tiny-tim

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    So is it still "more mass more change in velocity"? :smile:
     
  8. Apr 11, 2008 #7
    no the less massive object will have a more change of a velocity due to the more massive object. But the origonal statement is still false, right??
     
  9. Apr 11, 2008 #8

    tiny-tim

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    :rofl: Yes! :rofl:​

    I'm going to bed … :zzz:
     
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