## Question

Find out the velocity of efflux of water from a hole in the wall of a tank made at 20 m below the free surface of water in the tank.

*g* = 10 m/s^{2}.

### Solution

20 ms^{–1}

The velocity of efflux of water the hole is

.

where *h* is the depth of hole from the free surface of water. Here *h* = 20 m.

= 20 ms^{–1}.

#### SIMILAR QUESTIONS

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