a trapezoidal channel of base 6m and side slopes of 2:1 carries a flow of 60m^3/s at a depth of 2.5m.There is a smooth transition to rectangular section 6m wide accompanied by a gradual lowering of the channel bed by 0.6m. i.Find the depth of the water in the rectangular section and the change in the water surface level ii In the case the drop in the water surface is to be restricted to 0.3m,what is the amount the bed must be lowered ?assume no losses

Structural Analysis
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Chapter2: Loads On Structures
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a trapezoidal channel of base 6m and side slopes of 2:1 carries a flow of 60m^3/s at a depth of 2.5m.There is a smooth transition to rectangular section 6m wide accompanied by a gradual lowering of the channel bed by 0.6m.

i.Find the depth of the water in the rectangular section and the change in the water surface level

ii In the case the drop in the water surface is to be restricted to 0.3m,what is the amount the bed must be lowered ?assume no losses

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