Question
Download Solution PDFThe universal constant of gravitation G has the unit
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
From Newton's law:
F = G × (m1 × m2) / r2
Rearranging for G:
G = F × r2 / (m1 × m2)
⇒ F (N) = kg × m/s2, r2 = m2, m1, m2 = kg
⇒ G = (kg × m/s2) × m2 / (kg × kg)
⇒ G = N · m2 / kg2
∴ The SI unit of G is N · m2 / kg2.
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