Physics, 28.01.2020 21:03 NetherisIsTheQueen

Afreight train car with a mass of 1.2 _ 104 kilograms, travelling with a velocity of 23 meters/second, collides with a stationary freight train car of equal mass. what is the momentum of the system after the collision?
a. 1.2 × 105 kilogram meters/second
b. 1.4 × 105 kilogram meters/second
c. 2.4 × 104 kilogram meters/second
d. 2.8 × 105 kilogram meters/second

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