Answer to Question #153862 in Physics for buddy

Question

A very heavy box needs to be pushed into the corner of a room. Two friends work together and each push an adjacent sides of the box to move it diagonally (see image below). If the one friend pushes with a force of 550 N and the other friend pushes with a force of 520 N, what is the net force on the box, if the force of friction is 745 N in the opposing direction of the net force?

Answer 1

$$F_{net}=\sqrt{550^2+520^2}-745\\F_{net}=11.9\ N$$