Elastic Collisions: A 340-g air track cart traveling at 1.25 m/s suddenly collides elastically with a stationary 300-g cart. What is the speed of the 300-g cart just after the collision?
A. 0.0781 m/s
B. 1.33 m/s
C. 0.625 m/s
D. 1.25 m/s
E. 0.664 m/s
Answer: B
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