The space shuttle orbits 310 km above the surface of the earth.

what is the gravitational force on a 5.0 kg sphere inside the space shuttle?
express your answer with the appropriate units.

44.7 N

Explanation:

The gravitational force between the objects is given by:

where

G is the gravitational constant

m and M are the masses of the two objects

r is the distance between the centres of the two objects

In this problem, we have:

is the mass of the sphere

is the Earth's mass

is the Earth's radius, while h=310 km is the altitude of the sphere, so the distance of the sphere from Earth's centre is

Substituting into the equation, we find

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.

it is a negative acceleration