SOLUTION: How many litres of water will flow out of a pipe that has an area of cross section 15 sqcm in 5 minutes .if the speed of water in the pipe is 40 cm/sec ?
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Question 1111113: How many litres of water will flow out of a pipe that has an area of cross section 15 sqcm in 5 minutes .if the speed of water in the pipe is 40 cm/sec ? Found 2 solutions by ikleyn, Theo:Answer by ikleyn(52747) (Show Source):
You can put this solution on YOUR website! if the speed of the water is 40 centimeters per second, then a total of 5 minutes * 60 seconds per minute * 40 centimeters per second = 12,000 centimeters of water has passed through the pipe in 5 minutes.
since the cross section area of the pipe is 15 square centimeters, then the total volume of water that passed through the pipe should be 15 * 12,000 = 180,000 cubic centimeters of water.
there are 1000 cubic centimeters in 1 liter of water.
therefore, the number of liters of water that passed through the pipe in 5 minutes should be 180,000 / 1000 = 180 liters.
the water flowing through the pipe forms a cylinder.
the volume of a cylinder is the height of the cylinder times the area of the base.
