A 2.3-kg object traveling at 6.1 m/s collides head-on with a 3.5-kg object traveling in the opposite direction at 4.8 m/s. If the collision is perfectly elastic, what is the final speed of the 2.3-kg object?
A)
0.48 m/s
B)
7.1 m/s
C)
3.8 m/s
D)
4.3 m/s
E)
6.6 m/s
B
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