Question: Consider the two moving boxcars in Example. Determine the velocity of their center of mass. (a) Before and (b) After the collision. (c) Should your

Consider the two moving boxcars in Example. Determine the velocity of their center of mass.

(a) Before and

(b) After the collision.

(c) Should your answer in part (b) be less than, greater than, or equal to the common velocity vf of the two coupled cars after the collision? Justify your answer.

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