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CBSE Class 9 Answered

A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour. How much water will fall into the sea in a minute?please explain every step briefly!very briefly
Asked by | 18 Jan, 2014, 07:39: PM
answered-by-expert Expert Answer
The rate of the water flow is 2 km/hour.
 
We need to convert km/hour into m/minute.
 
The conversion factor is to convert from km/hour to m/minute.
Thus the rate of water flow is
Thus the length of the water flow in the river is
If we consider the length of the river as , then the volume of the
river is
Thus, the volume of the water falling in the sea per minute is
Answered by Vimala Ramamurthy | 19 Jan, 2014, 12:34: PM

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