An object weighs 9 N on the surface of the Earth. What would be its weight, when measured on the surface of a planet where the acceleration due to gravity is 9 times that on the surface of the Earth?

  1. A. The weight would remain the same
  2. B. The weight would be equal to 1 N
  3. C. The weight would become 9 times
  4. D. The weight will be reduced to \frac{1}{9} N

Correct Answer: C. The weight would become 9 times

Explanation

Weight is the product of mass and acceleration due to gravity (W = mg). If the acceleration due to gravity is 9 times that on Earth, the new weight will be 9 \times 9 = 81 N, which is 9 times the original weight.

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