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Surface Areas and Volumes
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30/07/2021 10:07 am
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A river 3m deep and 40m wide is flowing at the rate of 2km per hour. How much water will fall into the sea in a minute?
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30/07/2021 10:10 am
Depth of river, h = 3 m
Width of river, b = 40 m
Rate of water flow = 2km per hour
= \(\frac{2000}{60}\)min = \(\frac{100}{3}\) m/min
Volume of water flowed in 1 min
= (100/3) × 40 × 3 = 4000m3
Therefore, 4000 m3 water will fall into the sea in a minute.