2022 · Q21
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?
General KnowledgePhysics
- AThe weight would remain the same
- BThe weight would be equal to 1 N
- CThe weight would become 9 times
- DThe weight will be reduced to 1/9 N
Explanation
Weight W = mg. If g becomes 9 times Earth’s, the weight becomes 9 × 9 N = 81 N — nine times the original. (Mass stays the same; only weight scales with g.)