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Two equal mass billiard balls collide elastically in 1-D.
A) What is their relative velocity if they are initially approaching each other with speeds vA and vB? NOTE: their initial relative velocity , vR, is given by vR = vA - vB
B) What are their final velocities if vB is initially zero?
C) What can you conclude about 1-D elastic collisions?
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a child slides down a slide with a 29o degree incline and at the bottom her speed is precisely one-fourth what it would
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