The force of gravity is an inverse square law. This means that, if you double the distance between two large masses, the gravitational force between them Group of answer choices weakens by a factor of 4. strengthens by a factor of 4. weakens by a factor of 2. also doubles. is unaffected.

the force decreases by a factor of 4

Explanation:

The expression for the law of universal gravitation is

          F =

let's call the force Fo for the distance r

          F₀ =

They indicate that the distance doubles

          r ’= 2 r

we substitute

          F =

          F =

          F = ¼ F₀

consequently the correct answer is that the force decreases by a factor of 4

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.