Which sentence from paragraph 4 most precisely explains the factors that determine the force of gravity?
1. "Newton went much further than this qualitative description and wrote down equations that quantitatively describe the strength of the gravitational force between two objects."
г."In words, these equations state that the gravitational force between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them."
3.”This 'law of gravity can be used to predict the motion of planets and comets around the sun. the moon about the earth, and rockets heading off for planetary explorations, as well as more earthbound applications such as baseballs flying through the air and divers spiraling poolward from springboards."
4."The agreement between the predictions and the actual observed motion of such objects is spectacular."
2. "In words, these equations state that the gravitational force between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them."
The sentence that most precisely explains the factors that determine the force of gravity is:
2. "In words, these equations state that the gravitational force between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them."