An astronaut weighs 99.0 N on the Moon, where the acceleration of gravity is 1.62 m/s². How much does she weigh on Earth? A) 16.2 N B) 61.0 N C) 99.0 N D) 600 N E) 440 N

Question

Quizplus · Accepted Answer

The weight of an object is calculated by multiplying its mass by the acceleration due to gravity. On the Moon, the astronaut's weight is 99.0 N, so her mass is 99.0 N / 1.62 m/s² = 61.11 kg. On Earth, where gravity is 9.81 m/s², her weight would be 61.11 kg * 9.81 m/s² = 599.5 N, which rounds to 600 N.

An Astronaut Weighs 99