JEE Main 2024 Physics question
The mass of the moon is 1/144 times the mass of a planet and its diameter is 1/16 times the diameter of a planet. If the escape velocity on the planet is v, the escape velocity on the moon will be
Answer: (D)
Solution
= √(2GM/R), so v/ = √(M₁R₂/(M₂R₁)) = √(144 × 1/16) = √9 = 3. So the escape velocity on the moon is v/3.