A 7055 kg satellite is orbiting Earth where it is experiencing a gravitational field
strength of 1.82 N/kg.
(mass of the earth is 5.97 x 10 24 kg and radius of the earth is 6.38 x 10 6 m)
a) Determine the distance between the satellite and the centre of the Earth. [2]
b) Determine the satellites altitude. [1]
c) Determine the Force of gravity acting on the satellite at this position. [1]

an enlarged virtual image

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.