A tank containing water has an orifice on one vertical wall. If the centre of the orifice is 4.9 m below the surface of water in the tank, the velocity of discharge is :

0.98 m/s

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9.8 m/s

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98 m/s

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9.8 cm/s

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Solution

The correct option is A 9.8 m/s
Velocity of discharge at the orifice = $\sqrt{2 g h}$ [Toricelli's Theorem]
$= \sqrt{2 \times 9.8 \times 4.9}$
$= 9.8 m / s$

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A tank containing water has an orifice on one vertical wall. If the centre of the orifice is 4.9 m below the surface of water in the tank, the velocity of discharge is :

The correct option is A 9.8 m/sVelocity of discharge at the orifice = √2gh [Toricelli's Theorem]=√2×9.8×4.9=9.8m/s

The correct option is A 9.8 m/s
Velocity of discharge at the orifice = $\sqrt{2 g h}$ [Toricelli's Theorem]
$= \sqrt{2 \times 9.8 \times 4.9}$
$= 9.8 m / s$