A flume of timber has as its cross section an isosceles triangle (apex down) of (2.4 mathrm{~m})

Question:

A flume of timber has as its cross section an isosceles triangle (apex down) of $2.4 \mathrm{~m}$ base and $1.8 \mathrm{~m}$ altitude. At what depth will $5 \mathrm{~m}^{3} / \mathrm{s}$ flow uniformly in this flume if it is laid on a slope of 0.01 ?

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