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0.4 kg(3 m/s) + 0.8kg(-2 m/s) = 1.2 kg m/s -1.6 kg m/s = -0.4 kg m/s

-0.4 kg m/s = 1.2 kg(v) = (-0.4 kg m/s)/(1.2 kg) = v = -0.33 m/s

the cars are traveling at 0.33 m/s in the direction of the second car.

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13y ago
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3mo ago

The final velocity of the two cars will be in the direction of the heavier car. To find the final velocity, you need to apply the principle of conservation of momentum. The total momentum before the collision is equal to the total momentum after the collision, considering the system as isolated. With this, you can calculate the final velocity of the combined mass after the collision.

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Q: What is the size and direction of the final velocity of the tow cars if a 0.4 kg toy train car moving forward t 3 ms collides with and sticks to 0.8 kg toy car that is traveling in the opposite way?
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