GravitationHard
Question
Imagine a new planet having the same density as that of Earth but it is 3 times bigger than the Earth in size. If the acceleration due to gravity on the surface of Earth is g and that on the surface of the new planet is g′, then
Options
A.g′ = 3g
B.g′ = 
C.g′ = 9g
D.g′ = 27g
Solution
g = 
⇒ g = 
G ρ π R
⇒ g ∝ R ⇒
⇒ g′ = 3g
⇒ g = G ρ π R⇒ g ∝ R ⇒
⇒ g′ = 3gCreate a free account to view solution
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