Question

A 6.0 m high tank is full of water , a hole appears at its middle . What is the speed of efflux?

Answer 1

Answer:

7.66 m/s

Explanation:

√2g(6-3)

when you solve according to this formula eventually you got the answer after taking the square root of solved value that is 58.8

Answer 2

Answer:

The speed of efflux of water is 7.745m/s.

Explanation:

The velocity of the efflux is given as,

$v=\sqrt{2g(H-h)}$       (1)

Where,

v=velocity of the efflux of the water

g=acceleration due to gravity=10m/s²

H=total height of the container

h=height at which the hole is made

From the question we have,

H=6m

h=3m        (∵ the hole appears in the middle of the tank)

By substituting the required values in equation (1) we get;

$v=\sqrt{2\times 10\times (6-3)}=\sqrt{2\times 10\times 3} =\sqrt{60}=7.745m/s$

Hence, the speed of efflux of water is 7.745m/s.