If you weighed 150 lb on Earth,what would you weigh on Mars? For reference,Mars has a mass that is 0.1 times Earth's mass,and Mars has a radius that is 0.5 times Earth's radius.
A) 30 lb
B) 110 lb
C) 76 lb
D) 60 lb

Question

Quizplus · Accepted Answer

The gravitational force that an object experiences (which translates to weight) is directly proportional to the mass of the planet and inversely proportional to the square of the radius of the planet. Given that Mars has 0.1 times the mass of Earth and 0.5 times the radius, the weight of an object on Mars would be (0.1 / 0.5^2) = 0.4 times its weight on Earth. Therefore, if you weigh 150 lb on Earth, on Mars you would weigh 150 lb * 0.4 = 60 lb.

If You Weighed 150 Lb on Earth,what Would You Weigh