A glass cleaner of mass 95 kg places a 22 kg ladder against the wall.The ladder is 10 m

long and rests on a wet floor with a
coefficient of static friction equal to
0.40. What is the maximum length
that the window cleaner can climb
before the ladder slips?

1 answer

You will have to write a system of equations. The ladder can have a normal to the wall force at the ladder, and forces at the base. Horizontal force will be friction.

Sum moments about the base, sum vertical and horizonal forces. You will find your solution in those three equations.