Published by:
CGP EDU Academic Team
Published on: September 12, 2026
On a planet (whose size is the same as that of earth and mass 4 times to the earth) the energy needed to lift a 2kg mass vertically upwards through 2m distance on the planet is (g = 10m/sec 2 on surface of earth)
Text Solution
Verified by ExpertsThe correct answer is:
C
Given that m ′ = 4me & R ′ = Re
g 
⇒ 
= 
g ′ = 4g
w = mg ′ h
w = 2 × (4g) × 2 = 160 J
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