Train cars are coupled together by being bumped into one another. suppose two loaded train cars are moving toward one another, the first having a mass of 1.62 ✕ 105 kg and a velocity of (0.30 m/s)î, and the second having a mass of 1.11 ✕ 105 kg and a velocity of −(0.12 m/s)î. what is their final velocity (in m/s)? (express your answer in vector form.)

Explanation:

It is given that,

Mass of the car 1,

Initial speed of the car 1,

Mass of the car 2,

Initial speed of the car 2,

It is mentioned that train cars are coupled together by being bumped into one another. Let V is the final velocity of the train cars after the collision. It can be calculated using the conservation of linear momentum as :

So, the final speed of the coupled train cars is 0.129 m/s towards x axis. Hence, this is the required solution.  

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