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Two Identical Particles Move Toward Each Other, One Twice as Fast

Question 48

Multiple Choice

Two identical particles move toward each other, one twice as fast as the other. Just before they collide, one has a kinetic energy of 25 J and the other 50 J. At this instant their total kinetic energy is


A) 25 J.
B) 50 J.
C) 75 J.
D) none of the above
E) need more information

Correct Answer:

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