Two cars are driving in the same direction separated by 220 m. The car in front has a mass of 1500 kg and is moving at 22 m/s. The car in the back has a mass of 1200 kg and is moving in the same direction at 15 m/s. Part A: How far ahead of the trailing car is the center of mass? Part B: What is the velocity of the center of mass? (if the center of mass is moving opposite the direction the cars are moving, indicate with a negative sign) Part C: What is the total momentum of the two-car system? (if the system momentum is opposite the direction that the cars are moving, indicate with a negative sign)

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A:

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A:

Q: A 45.0-kg girl is standing on a 167-kg plank. The plank, originally at rest, is free to slide on a…

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Q: Homework Q9.

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