What is the free-fall acceleration at the surface of the moon?

The acceleration due to gravity is 1.62m/s^2, this is because the moons gravity is 1/6th that of Earth's (9.81m/s^2) hope this helps! you could also use Newton's law of gravity, F=GM/R^2 where g is the universal gravitational  constant, M= mass of the object and R=radius. There should be a neg sign in front of the equation since objects in free fall fall downwards from the given object. Hope this Helps

attach the statements so i can answer : )

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.