A 4,600 kg open train car is rolling on frictionless rails at 21.1 m/s when it starts pouring rain. A while later the car's speed is 19.5 m/s. What mass of water has collected in the car? Provide your answer in appropriate units of meters (m), seconds (s), kilograms (kg), radians (rad) or combinations thereof, such as m/s or m/s^2. Use at least three significant figures in your answer, do not use scientific notation. Using more significant figures will not be considered incorrect; using fewer may lead to errors due to rounding.
A 4,600 kg open train car is rolling on frictionless rails at 21.1 m/s when it starts pouring rain. A while later the car's speed is 19.5 m/s. What mass of water has collected in the car? Provide your answer in appropriate units of meters (m), seconds (s), kilograms (kg), radians (rad) or combinations thereof, such as m/s or m/s^2. Use at least three significant figures in your answer, do not use scientific notation. Using more significant figures will not be considered incorrect; using fewer may lead to errors due to rounding.
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Transcribed Image Text:A 4,600 kg open train car is rolling on frictionless rails at 21.1 m/s when it starts
pouring rain. A while later the car's speed is 19.5 m/s.
What mass of water has collected in the car?
Provide your answer in appropriate units of meters (m), seconds (s), kilograms (kg),
radians (rad) or combinations thereof, such as m/s or m/s^2. Use at least three
significant figures in your answer, do not use scientific notation. Using more
significant figures will not be considered incorrect; using fewer may lead to errors
due to rounding.
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