A box of mass m = 39.9kg sits on a rough horizontal surface. There is a coefficient of static friction / = 0.196 between the surface and the box. The box is subject to a force of magnitude F1 = 150.6N which pushes down and to the right making an angle of 0 = 31.6 degrees with the horizontal. The box is subject to a force of magnitude F2 which pushes to the left horizontally. (The input below will only mark answers correct if they vary by no more than 1% from the correct value.) If F2 = ON, what is the magnitude of the friction force that the surface exerts on the box? F 1 = N