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(simple problem) Impulse force caused by cube collision?

  1. Jun 28, 2011 #1
    I'm only interested in the 2d representation of this, as I will be applying whatever I learn to a physics engine

    Anyways, I know that a block resting on a flat surface will have a normal force acting on it equal to its weight
    However, I'm not interested in gravity

    But, say a block comes flying in and strikes the ground
    You know the velocity, angular velocity, and all the other measurable details about the collision
    How might you determine the value of the impulse that the surface would apply to the block? (which I assume is pretty similar to the normal)

    Also, am I correct to assume the impulse is perpendicular to the surface (as is with normal forces), and that total mechanical energy is conserved? (assuming no friction and completely elastic collision)

    I'm in the middle of solving this problem, but am slow, so any help would be appreciated!
     
  2. jcsd
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