Question

Donald is trying to get through a door but his friend Goofy is blocking the way using 15 N of force. Donald finally pushes on the door with 20 N and gets through knocking Goofy out of the way. Solve for net force.

Answer 1

5 N

Step-by-step explanation:

Goofy is blocking the way with 15 N force and Donald was only able to knock Goofy off using a 20 N force. The net force would be the difference between the applied force of Donald and that of Goofy.

Hence,

20 N - 15 N = 5 N

The net force is, therefore, 5 N.