A 6.0-kg object moving 5.0 m/s collides with and sticks to a 2.0-kg object. After the collision the composite object is moving 2.0 m/s in a direction opposite to the initial direction of motion of the 6.0-kg object. Determine the speed of the 2.0-kg object before the collision.
A) 15 m/s
B) 7.0 m/s
C) 8.0 m/s
D) 23 m/s
E) 11 m/s

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The Answer of A 6.0-kg object moving 5.0 m/s collides with and sticks to a 2.0-kg object. After the collision the composite object is moving 2.0 m/s in a direction opposite to the initial direction of motion of the 6.0-kg object. Determine the speed of the 2.0-kg object before the collision.
A) 15 m/s
B) 7.0 m/s
C) 8.0 m/s
D) 23 m/s
E) 11 m/s

A 60-Kg Object Moving 5