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A2.3- 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?
O 0.48 m/s
O 43 m/s
O 7.1 m/s
O 6.6 m/s
O 3.8 m/s

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