Question

Imagine a new planet is discovered with two moons of equal mass: Moon A and Moon B.



The mass of the new planet is greater than the combined mass of its moons.



Moon A is farther away from the new planet than Moon B.



What is the planet's gravitational pull on Moon A compared to the planet's gravitational pull on Moon B?

Answer 1

A.
The planet's gravity repels Moon A with a greater force than it repels Moon B, which is why Moon A is farther away.


B.
The gravitational pull on Moon A is the same as the gravitational pull on Moon B because distance does not affect the planet's gravity.


C.
The gravitational pull on Moon B is greater than on Moon A because Moon B is closer to the new planet than Moon A.


D.
The gravitational pull on Moon B is greater than on Moon A because Moon B is farther away from the new planet than Moon A.

Answer 2

Use Newton's law of universal Gravitation,

\[F=G \frac{ M _{p} M _{m} }{ r ^{2} } \]

Answer 3

Where,
Mp is mass of the planet
Mm is mass of the moon
r is distance