the effect will be roughly the same. Of course, the discussion was about something different: whether the damage to a cart having a head-on collision with another cart at 20 MPH was the equivalent of a cart colliding with a wall at 40 MPH. They aren't.
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Originally Posted by golfing eagles
Well said. The situation is not equivalent because the brick wall is not moving therefore it's momentum (mass x velocity) is 0. This is directly proportional to the kinetic energy of the object, which determines all kinds of things such as damage and injury. If they don't believe this, there is always the field experiment----run your cart head on into another going 20, and run it into a brick wall at 20. Care to guess which is worse?
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