Homework Help: physics

Posted by Claudia on Thursday, February 10, 2011 at 2:12pm.

truck A of mass 2,5 x 10(4) kg approaches a second truck B of mass 2 x 10(4) kg with a velocity of 12 m.s -1 and collides with it. After collision the two trucks move apart with equal but opposite momenta. Calculate what the velocity of B was before the collision

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