"Free Body Diagram"

This object is a book and it is moving to the right with acceleration. 

-in this diagram it shows 4 different forces to this object;

  1) Fnorm means normal force which is the force that any object has normally. In this diagram it shows that the book has normal force which is equal to the gravitational force. These are the force that go vertically. 

  2) Fgrav means the gravatational force that the object has from the gravity of earth which is pulling the book down. In this diagram the gravatational force is equal to the normal force. As you can see if you see the vertical forces. 

  3) Ffrict means the force of the friction tht the object when it is being pushed to the right. Which could be the floor or it could be a wall making that force against the book. As you can see in this diagram above it shows that the friction force is small which means that it has friction but it's not a lot. 

  4) The last force shown in this diagram is Fapp which is the applied forced. This force is called this wat because this is the force your are applying to the book so it could move to the ight. As you can see in this diagram the applied force arrow is more than the arrow of the force friction. So this means that the book is unbalanced because the forces horizontally are not equal to each other.