The speed of efflux through an orifice to a small hole in a large is 9.8ms-1. what would be the height of fluid above the orifice?
Answer: 4.9 m
Explanation
To determine the height of the fluid above the orifice, we use Torricelli's law, which states:
v= √2gh
where:
v is the speed of efflux (9.8 m/s)
𝑔 is the acceleration due to gravity (9.8 m/s²)
h is the height of the fluid above the orifice
We need to solve for h: 9.8= 2×9.8×h
Square both sides to eliminate the square root:
9.8 ^2 = √2×9.8×h
96.04=19.6h
Divide both sides by 19.6 to isolate ℎ:
ℎ = 96.04/ 19.6
h=4.9m
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