The two homogeneous bars AB and BC are connected with a pin at B and placed between rough vertical walls. If the coefficient of static friction between each bar and the wall is 0.25, determine the largest angle 0 (in degrees, round-off to 2 decimal places) for which the assembly will remain at rest. B 24 in. 24 in. 8 lb 10 lb C
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- 300 lb NOT TO SCALE B. E D 4 ft 650 lb · ft 3 ft 2 ft -2 ft→ The pin at point C fits into a smooth slot cut into member AC. Since there is no friction between the pin and the slot, the force there is normal to the slot. For component directions, use x positive to the right and y positive upward.Q2: - The ladder and the person weigh 30 lb and 180 lb, respectively. The center of mass of the 12-ft ladder is at its midpoint. The angle Assume that the wall is smooth on the ladder. (a) If what is the magnitude of the friction force exerted on the ladder by the floor as shown in fig 2? (b) What minimum coefficient of static friction between the ladder and the floor is necessary for the person to be able to climb to the top of the ladder without slipping? 160 mm 20 ft/s 140 mm 200 40 mm mm 10 | 40 mm 120 mm Fig 1 Fig 2 Fig 3Question 2 The wheel A and a block B are connected by a cable. The coefficient of friction of the wheel and the ground is HA = 0.4. The coefficient of friction of the block and the ground is HB = 0.3. The wheel A has mass 40 kg, and the block B has mass 30 kg, with a %3D center of gravity shown. The radius r, = 0.5m. The outer radius is 1 m. a) Determine the smallest force P (applied vertically) that will cause motion to impend. b) What type of motion is impending? (i.e. slipping/tipping at A/B)