Question: A 6 . 0 - kg object moving 2 . 0 m / s in the positive x direction has a one - dimensional elastic

A 6.0-kg object moving 2.0 m/s in the positive x direction has a one-dimensional elastic collision with a 4.0-kg object moving 3.0 m/s in the opposite direction. What is the total kinetic energy of the two-mass system after the collision?
a.
30 J
b.
62 J
c.
20 J
d.
44 J
e.
24 J

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