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# please solve and i will award best answer?

A jet of water squirts out horizontally from a

hole on the side of the tank as shown below.If the hole has a diameter of 3.51 mm , what

is the height of the water above the hole in

the tank?

Answer in units of cm.

Update:

height is 1.78 m

distance is .6 m

### 3 Answers

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- NCSLv 712 months agoFavorite Answer
Assuming your update applies to the spouting water, then the time it takes to fall is

t = √(2s / g) = √(2 * 1.78m / 9.8m/s²) = 0.60 s

and so the horizontal velocity is

v = x / t = 0.6m / 0.60s = 1.0 m/s

For the height above the hole,

v² = 2gh

h = v² / 2g = (1.0m/s)² / 19.6m/s² = 0.051 m = 5.1 cm

Hope this helps!

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- sojsailLv 712 months ago
I am puzzled about the update. Is that the answer?

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- Anonymous12 months ago
"shown below"...it must be under water...CAUSE WE DON'T SEE NOTHING!

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