Determine the force P required to force the 14° wedge under the 70-kg uniform crate which rests against the small stop at A. T coefficient of friction for all surfaces is 0.35. P O 14° 1.5 m 70 kg 0.6 m A 14°
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- Two identical wood blocks with weight W are being pushed apart by a wedge. The coefficient of static friction for all surfaces is 0.325. Determine the weight of the wedge, P, required to start the blocks moving. The wedge is symmetrical about the vertical, and 0 = 24°. Use the triangle method or the component method. urgenttt thank youThe end A of the beam needs to be raised slightly to make it level. If the coefficient of static friction of the contact surfaces of the wedge is 0.2, determine the smallest value of the horizontal force P that will raise end A. The weight and size of the wedge are negligible. 250 N/m 10° 3 mTwo blocks with masses ma = P kg and mg = 100 kg are connected with a flexible cable that passes over a frictionless pulley as shown in Fig. The coefficient of friction between the blocks is 0.2. If motion of the blocks is impending, determine the coefficient of friction between block B and the inclined surface and the tension in the cable between the two %3D blocks. the force for P is 78kg A B 40°
- The 81-lb force Pis applied to the 190-lb crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force Fexerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume 4, = 0.41, Hx = 0.33. Answer: F= i 77.9 IbDetermine the force P required to force the 18° wedge under the 83-kg uniform crate which rests against the small stop at A. The coefficient of friction for all surfaces is 0.39. P 4° 18° Answer: P = i 468 1.7 m 83 kg 0.8 m A 18° NThe coefficient of friction between 200 Ib homogeneous cylinder and the horizontal plane is 0.4 as shown in figure. The vertical plane is smooth. Determine the frictional force exerted on the cylinder by the horizontal surface. 40ft-lb
- A uniform ladder of length 3.25 m and weighing 250 N is placed Against a smooth vertical wall with its lower end 1.25 m from theWall. The coefficient of friction between the ladder and floor is0.3. The frictional force acting on the ladder at the point of contactWith floor is O 70 O 68 O 65 O 79 O 75 N.1. The two 890 N blocks are pushed apart by the 150 wedge of negligible weight. The angle of static friction is 12° at all surfaces. Determine the force P required to start the blocks moving. 890N 890NThere is a box M₁ with a mass of 20 kg placed on an inclined plane with respect to x-axis of 30°. M₁ is connected with a cable, which is parallel with the inclined plane. The coefficient of the static friction between the surface and the box is μs=0.25. Determine the tension force T in the cable. Assume gravity to be 9.8m/s2. O O 30⁰ T = 98 N T = 55.56 N Don't Know T = 196 N T = 42.44 N M₁ T