(a) Draw the FBD of A and B when the wedge B impends to slide to the left. Friction is negligible except for the surface under B whose coefficient of friction is 0.20. (b) Determine the magnitude of P to start the wedge B to slide to the left. 30 120 fb P B 80 lb
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Please show all the applied forces CLEARLY in the FBD. Needed in 30 minutes thank you
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- Two blocks are being pushed along an incline. Block A weighs 7.00 kg and block B weighs 14.00 kg. The coefficient of non-sliding friction between block B and the surface of the incline is 0.200 and the coefficient of sliding friction is 0.1000. Assume that the coefficient of friction between the two blocks are too high to cause sliding between the two blocks. The applied force is 185 N. 185 N 40° 5. Which of the following gives the closest value to the magnitude of the acceleration of both blocks? 1.752 m/s2 1.000 m/s2 6.16 m/s2 3.21 m/s2A mountain camper has problems with his off road vehicle. To hold it in place the camper wraps a rope abound a treen + turns. The coefficient of friction between the rope and the tree is u. = 0.23. The car pulls on its end of the rope with a force of 2250 N. The camper wants to pull on the rope with a force no greater than P = 54 N. P Determine the integer value of n. (Enter the minimum possible integer value of 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 890N
- A 100-lb block is pushed at constant speed for a distance of 20 ft along a level floor by a force that makes an angle of 35° with the horizontal, as shown in Fig. The coefficient of friction between the block and the floor is 0.35. Determine The work done on the block by the force. F. 35°Two blocks are joined by an inextensible cable as shown. The mass of block A is 189.5 kg and the mass of block B is 261.3 kg. If the system is released from rest, determine the tension (in N) in the cable. Assume that the coefficient of friction between block A and the plane is uk = 0.33 and that the pulley is weightless and frictionless. Round off only on the final answer expressed in 3 decimal places. Use g = 9.81 m/s? blocks.png ... A ВA 12 ft ladder weighing 40 lb is placed. When a 180 lb man reaches a point 8ft from the lower end, the ladder is about to slip. Determine the coefficient of friction between the ladder and the floor. The coefficient of friction between the ladder and the wall is 0.20. The angle between the floor and the ladder is 60 degrees.
- 2. The 100 – Ib force acts as shown on a 300 - Ib block placed on an inclined plane. The coefficients of friction between the block and the plane are us = 0.25 and Hk = 0.20. Determine whether the block is in equilibrium, and find the value of the friction for the friction force. 300 Ib 100 lbTwo blocks are joined by an inextensible cable as shown. The mass of block A is 140.9 kg and the mass of block B is 271.1 kg. If the system is released from rest, determine the tension (in N) in the cable. Assume that the coefficient of friction between block A and the plane is uk = 0.39 and that the pulley is weightless and frictionless. Round off only on the final answer expressed in 3 decimal places. Use g = 9.81 m/s² A BDetermine the magnitude and direction of the friction force exerted on the 100-lb block when (a) 0= 15°, (b) 0= 30°. For both parts, let P 120 lb. Draw separate FBDS for each part of the problem. %3D