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NTA Abhyas JEE Main2020PhysicsGravitationPractice

The mass of a planet and its diameter are three times those of earth’s. Then the acceleration due to gravity on the surface of the planet is: g = 9 . 8 m s - 2

Options

  1. A3.3 m   s - 2
  2. B4.9 m   s - 2
  3. C19.6 m   s - 2
  4. D29.4 m   s - 2

Correct answer

A. 3.3 m   s - 2

Step-by-step solution

g p l a n e t = G 3 M e 3 R e 2 g = G M e R e 2 g p l a n e t = 9.8 3 ≈ 3.3 m   s - 2

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