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Estimate the velocity of each stone have just after the collision

  1. Apr 1, 2008 #1
    Hi :smile: I really need a answer to this task. Hope anyone can help.

    A curling stone ( named A ) gets on the ice with a unknown beginning velocity Vo
    the stone moves along a straight line ( x axis ) on the x axis further ahead lies another
    stone ( named B ) still. Stone A collides with stone B in a sloped hit/knock
    Just before the hit stone A has a velocity of 2m/s. After the slope stone A moves
    straight with a angle of 45 degree in proportion at/of the x axis. Equivalently for stone B is -30 degrees.

    a ) Estimate the velocity of each stone have just after the collision

    b) Estimate the loss of kinetic energy in this collision. A curling stone have mass 20kg. what kind of collision is this ?


    The reason for the energy loss is that big is that ice-sludge came between the stones in the collision. We clean up and retake the attempt. Now we reckon that the push is approximate perfect elastic Stone A has the velocity of 2 m/s before the push/hit and 1,5m/s after. The direction of a form the angle 41,3 degree with the x axis after the push/hit.

    c) Find the velocity and direction of B after the stone is Pushed/released.

    d ) Check that the push of the stone is approximated elastic, by calculate the x component
     
  2. jcsd
  3. Apr 1, 2008 #2
    a) use conservation of momentum in the x and in the y direction.
     
  4. Apr 2, 2008 #3
    Thanks. But can I get some moore information Im a noob :)
     
  5. Apr 5, 2008 #4
    none ?
     
  6. Apr 5, 2008 #5

    Hootenanny

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    What further information do your require?
     
  7. Apr 5, 2008 #6
    The formula and correct answer would been nice
     
  8. Apr 5, 2008 #7

    Hootenanny

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    Nope, we don't do that here. Your going to have to do some work yourself. What can you say about the total momentum before and after the collision?
     
  9. Apr 5, 2008 #8
    Its less after the collition (velocity) ? Not sure what mometum means movement/direction or velocity ? But im guessing its velocity
    Im Not english:blushing:
     
  10. Apr 5, 2008 #9

    Hootenanny

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  11. Apr 7, 2008 #10
    But in a you dont know the mass
     
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