Consider the two moving boxcars in Example 5. Car 1 has a mass of m, = 65000 kg and a velocity of vo1 = +0.80 m/s. Car 2 has a mass of m2 = 92000 kg and a velocity of vo2 = +1.2 m/s, overtakes car 1 and couples to it. Determine the velocity of their center of mass (a) before and (b) after the collision. (a) Number Units (b) Number Units

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