Two loaded train cars are moving towards one another, the first having a mass of 60 tn and a velocity of 1.3 m/s, and the second having a mass of 120 tn and a velocity of –0.45 km/h. What is their final velocity after coupling together

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: