do the following questions

MET 2610 Statics HW#10 1. The 180-lb man climbs up the ladder and stops at the position shown after he senses that the ladder is on the verge of slipping. Determine the inclination 0 of the ladder if the coefficient of static friction between the friction pad A and the ground is /s = 0.4. Assume the wall at B is smooth. The center of gravity for the man is at G. Neglect the weight of the ladder. Gion 2. The log has a coefficient of static friction of us = 0.3 with the ground and a weight of 40 1b/ft. If a man can pull on the rope with a maximum force of 80 lb, determine the greatest length 1 of log he can drag 80 1b 3. Block A in the figure shown has amass of 10 kg and block B has a mass of 20kg. The coefficient of static friction are 0.5 between the two blocks and 0.15 between the lower block and the supporting surface. Calculate the force P that will cause motion to impend. B4. Compute the minimum weight of the block B that will prevent the two-block system shown sliding. Bock A wrights 100 lb and the coefficient of static friction for the contact surfaces is 0.2. Assume the pulley to be frictionless. Pulley B 40