Free Body Diagrams

                          

                          FN=-8N

                                                     FG=8N

                                                      FF=-5N

                                                      FA=5N

the block is not moving since all the forces have the same amount. I'm pushing the block with both hands and my sister is pulling the block too. Which means that i will be the applied force and my sister is the friction force. The normal force would be the table where is at which is going against gravity force .The gravity force which is pulling the block down.