A rectangular trough, 1.6 m long, 0.60 m wide, and 0.35 m deep, is completely full of water. One end of the trough has a small drain plug right at the bottom edge. When you pull the plug, at what speed does water emerge from the hole?

1 answer
Question:

A rectangular trough, 1.6 m long, 0.60 m wide, and 0.35 m deep, is completely full of water. One end of the trough has a small drain plug right at the bottom edge.
When you pull the plug, at what speed does water emerge from the hole?

Answers

Answer:v = 2.61 m/sExplanation:Given that,Length of a rectangular trough, l = 1.6 mBreadth of a rectangular trough, b = 0.6 mDepth of a rectangular trough, h = 0.35 mWe need to find the speed with which water emerge from the hole. It is a concept of efflux. The velocity of efflux is given by :[tex]v=\sqrt{2gh}\\\\v=\sqrt{2\times 9.8\times 0.35}\\\\v=2.61\ m/s[/tex]So, water will emerge from the hole with a speed of 2.61 m/s.

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