The uniform dresser has a weight of 90 lb and rests on a tile floor for which μs = 0.25. I...

The uniform dresser has a weight of 90 lb and rests on a tile floor for which μs = 0.25. If the man pushes on it in the horizontal direction θ = 0°, determine the smallest magnitude of force F needed to move the dresser. Also, if the man has a weight of 150 lb, determine the smallest coefficient of static friction between his shoes and the floor so that he does not slip.