Question

Tentukan dimensi
a. Massa jenis
b. Daya
C. Tekanan
d. Energi potensial

Answer 1

A. Massa jenis
= massa / volume
= [M] / [L]³
= [M] [L]⁻³

b. Daya
= gaya . kecepatan
= massa . percepatan . kecepatan
= [M] . [L] [T]⁻² . [L] [T]⁻¹
= [M] [L]² [T]⁻³

c. Tekanan
= gaya / luas
= massa . percepatan / luas
= [M] . [L] [T]⁻² / [L]²
= [M] . [L] [T]⁻² . [L]⁻²
= [M] [L]⁻¹ [T]⁻²

d. Energi potensial
= massa . gravitasi . ketinggian
= [M] . [L] [T]⁻² . [L]
= [M] [L]² [T]⁻²

Answer 2

Massa jenis --> m/v --> kg/m³ --> [M] [L]⁻³
daya --> W/t --> Joule/s --> kg m²/s².s --> kg m²/s³ --> [M] [L]² [T]⁻³
tekanan --> F/A --> N/m² --> kg m/s².m² --> kg/m.s² --> [M] [L]⁻¹ [T]⁻²
energi potensial --> m.g.h --> kg m/s² . m --> kg m²/s² --> [M] [L]² [T]⁻²