An object's weight on the Moon is less than its weight on Earth. This is because the Moon exerts less gravitational force on an object than Earth does. The equation

m =

can be used to find an object¿s weight on the moon, where m is the object¿s weight on the Moon, and e is its weight on Earth.

If a rock weighs 120 pounds (lb) on Earth, which of the following is the best estimate of the rock's weight on the Moon?

You failed to provide either the equation or the "following" choices.

I am assuming the equation is

m = e/6.

That would imply that m equals one-sixth of 120 pounds.

To estimate the rock's weight on the Moon, we can use the equation provided:

m =

where m represents the rock's weight on the Moon and e represents its weight on Earth.

Given that the rock weighs 120 pounds on Earth (e = 120 lb), we can substitute this value into the equation and solve for m:

m =

Plugging in e = 120 lb:

m =

To estimate the rock's weight on the Moon, we need to understand that the Moon's gravitational force is about 1/6th that of Earth's. Therefore, the rock's weight on the Moon would be approximately 1/6th of its weight on Earth.

Calculating 1/6th of 120 lb:

m =

m ≈ 20 lb.

Hence, the best estimate of the rock's weight on the Moon is approximately 20 pounds (lb).