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Physics 6 Online
OpenStudy (anonymous):

immediate help needed!!! Collisions Lab http://phet.colorado.edu/sims/collision-lab/collision-lab_en.html Run the simulation and draw a diagram that represents Pi - the momentum before the collision. Underneath that diagram draw another diagram that shows two vectors - P1f and P2f - the final momentums of ball 1 and ball 2 after the collision. Include a third vector that represents Pf - the sum of the former two vectors. Using formula, calculate the total kinetic energy before and the total energy after the collision.

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