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QUESTION 6 An uncovered hopper railcar with a mass of 40000 kg is rolling along a...

QUESTION 6

An uncovered hopper railcar with a mass of 40000 kg is rolling along a horizontal frictionless track. At the instant the speed of the railcar is 5 m/s it starts to rain heavily and the railcar begins to collect rainwater at a rate of 2.5 kg/sec. What distance (in km) will the car have travelled during the first hour of rain?

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