If your mass is 50 kg what is your mass on the moon?

2 Answers
Jun 13, 2018

An old trick question set by a fiendish physics prof...

Explanation:

Mass is invariant. A mass of #50*kg# on Earth is STILL a mass of #50*kg# on the Moon, and still a mass of #50*kg# on Jupiter, and still a mass of #50*kg# on the dark side of the planet Coosbane.

However, WEIGHT does vary given the gravitational well. A mass of #50*kg# has a WEIGHT of #50*kgxx9.81*N*kg^-1=490.5*N# on the earth, but a weight of #50*kgxx1.622*N*kg^-1=81.1*N# on the moon......

Jun 14, 2018

#50# kilograms

Explanation:

Mass never changes, and is constant everywhere. The weight is what changes. If you weigh #50 \ "kg"# on Earth, you'll weigh #50 \ "kg"# everywhere else in the universe. That's because the amount of matter in you cannot change.