The 200-lb man lies against the cushion for which the coefficient of static friction is #s=0.5. The cushion rotates about the z axis. He has a constant speed v= 20 ft/s. Neglect the size of the man and take = 60°. (Figure 1) 0 Figure 8 ft 1 of 1 > Part A Determine the magnitude of the resultant normal force the cushion exerts on him. Express your answer in pounds to three significant figures. ▸ View Available Hint(s) —— ΑΣΦΑ ▾ N = Submit Part B F= ΠΕ Determine the magnitude of the resultant frictional force the cushion exerts on him. Express your answer in pounds to three significant figures. ▸ View Available Hint(s) Submit Provide Feedback vec ^ - ΑΣΦ ? vec 3 lb (2) ? lb

The 10-kg block is moving with an initial speed of 4 m/s. The coefficient of kinetic friction between the block and plane is µk= 0.3. Determine the compression in the spring when the block momentarily stops. Express your answer to three significant figures and include the appropriate units.

The ladder and the person weigh 30 lb and 180 Ib, respectively. The center of mass of the 12-ft ladder is at its midpoint. The coefficient of static friction between the ladder and the floor is 0.50. What is the largest value of the angle ALPHA for which the person could climb to the top of the ladder without it slipping? The ladder and the person weigh 30 lb and 180 Ib, respectively. The center of mass of the 12-ft ladder is at its midpoint. The coefficient of static friction between the ladder and the floor is 0.5 and the coefficient of friction between the ladder and the wall is 0.3. What is the largest value of the angle ALPHA for which the person could climb to the top of the ladder without it slipping?

Q1/ The weights of the various components of the truck are shown. Replace this system of forces by an equivalent resultant force and specify its location measured from B? Ans: R=- 10750 lb, d= 13.7 ft 3500 lb B 5500 lb) A 1750 lb tont -14 ft- 3 ft 2 ft ...