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Seorang penyelam mampu berada pada kedalaman 40 m di bawah permukaan laut. jika massa jenis air laut 1,2 g/cm³ dan percepatan gravitasi 10 m/s², maka hitunglah besar tekanan hidrostatis yang dialami penyelam!

Seorang penyelam mampu berada pada kedalaman 40 m di bawah permukaan laut. jika massa jenis air laut 1,2 g/cm³ dan percepatan gravitasi 10 m/s², maka hitunglah besar tekanan hidrostatis yang dialami penyelam!

Jawaban soal ini adalah 480000 Pa

Diketahui:
h= 40 m
ρ = 1,2 g/cm^3= 1200 kg/m^3
g= 10 m/s^2

Ditanya:
P=…?

Jawab:
Tekanan hidrostatis adalah tekanan yang diakibatkan oleh gaya yang ada pada zat cair terhadap suatu luas bidang tekan, pada kedalaman tertentu. Dengan menggunakan rumus tekanan hidrostatis yang dirumuskan dengan:
P=ρ.g.h
dimana:
P= tekanan (Pa)
ρ= massa jenis (kg/m^3)
g= percepatan gravitasi (m/s^2)
h= kedalaman (m)

Sehingga:
P= ρ.g.h
P= 1200.10.40
P= 480000 Pa

Jadi, tekanan hidrostatis yang dialami penyelam adalah 480000 Pa

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