Two children are fighting over a toy box of mass m = 13.0 kg in a sand box. Child B pulls horizontally with force FB = 43.0 N while Child A pulls on the other side at a downward angle of θ = 46.0∘ with force FA = 97.0 N. If the box just begins to move in child A's direction, what is the coefficient of static friction between the box and the sandbox? Retain your answer to two decimal places.