Water in a river which is 3 m deep and 40 m wide is flowing at the rate of $2 \mathrm{~km} / \mathrm

Question

Water in a river which is 3 m deep and 40 m wide is flowing at the rate of $2 \mathrm{~km} / \mathrm{h}$. How much water will fall into the sea in 2 minutes?\

Professor PC Thomas Classes · Answer

(c) : Width of the river, $b=40 \mathrm{~m}$
 Depth of the river, $h=3 \mathrm{~m}$\ Flowing rate of water $=2 \mathrm{~km} / \mathrm{h}$ 
$ =\frac{2 	imes 1000}{60} \mathrm{~m} / \mathrm{min}=\frac{100}{3} \mathrm{~m} / \mathrm{min} $ 
∴ Volume of water that falls into sea in 2 minutes 
$ =2 	imes 40 	imes 3 	imes \frac{100}{3}=8000 \mathrm{~m}^{3} $