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QUESTION
a particle of mass .7kg, initially moving with velocity of 6 m/s, collide elastically with a particle of mass 1.9...
a particle of mass .7kg, initially moving with velocity of 6 m/s, collide elastically with a particle of mass 1.9 kg, initially moving with a velocity of -8m/s. what are velocities of the two particles after the collision.\
