Question

which model has greater gravitational attraction (if any) model a model b both model a and model b (same gravity)

Explanation:

Step1: Recall gravitational - force formula

The gravitational force formula is $F = G\frac{m_1m_2}{r^2}$, where $G$ is the gravitational constant, $m_1$ and $m_2$ are the masses of the two objects, and $r$ is the distance between their centers - of - mass.

Step2: Analyze the factors in the models

Assume the mass of the Earth is $M$ and the mass of the small object is $m$. If the distance between the Earth and the small object in Model A is $r_A$ and in Model B is $r_B$, and the masses of the Earth and the small object are the same in both models. If $r_A

Answer:

If the small object in Model A is closer to the Earth than the small object in Model B, the answer is A. Model A; if the small object in Model B is closer to the Earth than the small object in Model A, the answer is B. Model B; if they are at the same distance, the answer is C. Both Model A and Model B (same gravity)