Question

An astronaut weighs 840 N on Earth, what would his weight be on the Moon?

• A. 100 N
• B. 120 N
• C. 140 N
• D. 840N

Answer 1

The correct option is C

140 N

Acceleration due to gravity on the Moon is one-sixth of the acceleration due to gravity on the Earth. So, the weight of the astronaut on the Moon will be one-sixth of his weight on the Earth.

Weight on moon = $\frac{weightonearth}{6}$

Weight on moon = $\frac{840}{6}=140N$