You push one side of an open door with a force of 120 n. your friend pushes on the other side of the door with an equal force.

Umm we the type of answer you need. Here's a list:

A: Balanced Force

B: 240 Net Force

C: Doesn't move

D: 0N force any direction

The door wont move

Explanation:

The reason it wont move is because both directions are exerting the exact same amount of forces in opposite directions so we will subtract 120 N – 120 N {because there in opposite directions}

120 N – 120 N = 0 N

Which is a balanced force and balanced forces cause no change in motion