Physics - Universal Gravitation

Question

Two similar masses are 45cm apart, and experience a gravitational force of attraction of 1.59x10^-13 N. What is the mass of each, in grams?

Answer 1

The basic equation for universal gravitation:

F = Gm₁m₂/d²

^{Where G is the gravitational constant, d is the distance between the objects, and m}₁ and m₂ are the masses of the objects.

If m₁ and m₂ are similar, you can simplify this equation to:

F = Gm²/d²

or

m = √(Fd²/G)