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JEE Physics · Medium

Gravitation: Weight at Altitude MCQ

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Weight at AltitudeMediumQuestion 30716

Question

A body weighs 900 N on Earth's surface. Its weight at height R (one Earth radius above surface) is:
  1. A
    450 N
  2. B
    225 N
    Correct
  3. C
    300 N
  4. D
    600 N

Correct answer

225 N

Explanation

At height R above surface, distance from centre = 2R. g_h = g/(1+h/R)² = g/4. Weight = 900/4 = 225 N.

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