# A 4700 kg open train car is roling on frictionless rails at 20 m/s when it...

###### Question:

A 4700 kg open train car is roling on frictionless rails at 20 m/s when it starts pouring rain. Rain falls vertically. A few minutes later, the car's speed is 15 m/s Part A What mass of water has collected in the car? Express your answer to two significant figures and include the appropriate units. m 1766.66 Submit Previous Answers Request Answer X Incorrect; Try Again Provide Feedback Next >

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