# Trough

How many liters of water per second can go via trough, which has a cross section of semicircle with radius 2.5 m and speed of water is 147 cm per second?

Result

V =  14431.7 l/s

#### Solution:

$v = 147\ cm/s = 1.47\ m/s \ \\ V = S v = \dfrac{ \pi r^2}{2} v = 14.43 \ m^3/s = 14431.7 \ \text{l/s}$

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