A clean wooden box of mass 29[kg] is resting on a clean wooden surface. A person is pushing the box with an increasing force. The force slowly grows from 0, until the force reaches a maximum of 50 [Newton]. The static coefficient of friction between the box and the surface is u_s=0.2 and the kinetic coefficient of friction is u_k=0.1.  Draw the pushing force (y axis) vs the force of friction.