You are trying to tip over a uniform rectangular box of mass 100 kg, height 1.0 m and length 2.0 m by pulling on a rope that is attached to the box as shown in the figure. The rope makes an angle of 40° with the vertical. The floor is rough and the box does not slip on the floor.
a) Find the magnitude of the pulling force needed to just get the box to tip.
b) In that situation, what is the minimum coefficient of static friction that will prevent the box from sliding?