Question: Changing Mass An open-topped freight car with mass 24,000 kg is coasting without friction along a level track. It is raining very hard, and the

Changing Mass An open-topped freight car with mass 24,000 kg is coasting without friction along a level track. It is raining very hard, and the rain is falling vertically downward. Originally, the car is empty and moving with a speed of 4.00 m/s. What is the speed of the car after it has collected 3000 kg of rainwater?

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