The weight of an object on the moon. varies directly as the weight of the objects on Earth. A 90-pound object on Earth weighs 15 pounds on the moon. If an object weighs 156 pounds on Earth, how much does it weigh on the moon?

1 Answer
Mar 15, 2018

26 pounds

Explanation:

The weight of the first object on the Earth is 90 pounds but on the moon, it is 15 pounds. This gives us a ratio between the relative gravitational field strengths of the Earth and the moon,

WMWE

Which yields the ratio
(1590)=(16)0.167

In other words, your weight on the moon is 16 of what it is on Earth.

Thus we multiply the mass of the heavier object (algebraically) like this:

(16)=x156 ( x=mass on the moon)
x=(156)×(16)

x=26

So the weight of the object on the moon is 26 pounds.