Question

Darren the astronaut traveled to Planet U-427, a planet that is as big as Earth but is half the mass of Earth. What can you say about Darren's weight in this planet?

Answer 1

With half the mass, he would weigh half as much as on earth.

Answer 2

Darren's weight on the planet will be half of the weight as in earth as the weight on the planet will be
W = (mg)/2

Answer 3

Since Planet U-427 only has half the mass of Earth, you can infer that the gravitational force is less on this planet. Thus, Darren's weight on this planet is less than his weight on Earth.