select all the correct answers. according to newtons law of universal gravitation, which statements are…

Brief Explanations:

Newton's law of universal gravitation is $F = G\frac{Mm}{r^{2}}$, where $F$ is the gravitational - force, $G$ is the gravitational constant, $M$ is the mass of the Earth, $m$ is the mass of the object, and $r$ is the distance from the center of the Earth to the object. As altitude increases, $r$ increases, and since $F$ is inversely proportional to $r^{2}$, the gravitational force decreases. As mass $m$ of the object increases, since $F$ is directly proportional to $m$, the gravitational force increases. The speed of an object does not affect the gravitational force according to this law.

Answer:

A. As we move to higher altitudes, the force of gravity on us decreases. C. As we gain mass, the force of gravity on us increases.