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18 votes
18 votes
the pressure (p) at the bottom of a swimming pool varies directly as the depth (d) of the water. If the pressure is 125 pascal when the water is 2meters deep, find the pressure when it is 4.5 deep​

User Kristian Dupont
by
2.3k points

1 Answer

21 votes
21 votes

Explanation:

p varies directly with d.

that means there is a constant k, so that

p = kd

to find k we use the one set of numbers we know about

125 = k×2

k = 125/2 = 62.5

now, when the water is 4.5 meters deep :

p = 62.5 × 4.5 = 281.25 pascal

User Seraphin
by
3.1k points
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