A 0.10-kg cart traveling in the positive x direction at 10.0 m/s collides with a 0.30-kg cart at rest. The collision is elastic. What is the velocity of the 0.10-kg cart after the collision?
A)+2.5 m/s
B)-2.5 m/s
C)+5 m/s
D)-5 m/s
E)+3.3 m/s

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The Answer of A 0.10-kg cart traveling in the positive x direction at 10.0 m/s collides with a 0.30-kg cart at rest. The collision is elastic. What is the velocity of the 0.10-kg cart after the collision?
A)+2.5 m/s
B)-2.5 m/s
C)+5 m/s
D)-5 m/s
E)+3.3 m/s

A 010-Kg Cart Traveling in the Positive X Direction at 10