Physics Torque Question: Calculating Maximum Climb Height on a Smooth Wall

[physics_wonderer123]

Hello to all...can anybody help me set up this problem

An 8.00-m, 200-N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.600, and the ladder makes a 50.0 degree angle with the ground. How far up the ladder can an 800-N person climb before the ladder begins to slip?[/i]

Thank you very much

 

[Galileo]

Draw a body diagram with all the forces. What condition must be satisfied for the ladder to just slip?