Problem 14.15 The two blocks A and B have weights WA-72 lb and Wp 13 lb (Figure 1) Part A If the kinetic coefficient of friction between the incline and block A is A4-02. determine the speed of A after it moves 3 ft down the plane starting from rest. Neglect the mass of the cord and pulleys Express your answer to three significant figures and include the appropriate units. ft "4· 13.08 Submit X Incorrect; Try Again; 4 attempts...
The three blocks have weights of WA = 60 lb, WB = 40 lb, and WC = 20 lb. If the coefficients of static friction at the surfaces of contact are UAB = 0.4, UBC = 0.3, and UCD = 0.2, determine (a) the smallest horizontal force P needed to move block C, and (b) the tension in the cable. Cable attached to the wall and block A a.) P= b.) T = A B Р С D
Review Part A Determine the velocity of the 69-lb block A the two blocks are raleased from est and the 28-lb block B moves 2 ft up the incline. The coelficient of kinetic friction between both blocks and the inclined planes is pG.10 (Figure 1) Express your answer with the appropriate units Figure 1 of 1 Value Units Request An Submit Provide Feedback Next
Part A Determine the velocity of the 48-lb block A if the two blocks are released from rest and the 26-lb black B moves 2 ft up the incline. The coefficient of kinetic friction between both blocks and the inclined planes is pk .10. (Figure 1) Express your answer with the appropriate units. Figure 1 of 1 I Value Units Submit Request Answer Provide Feedback Next > 60
At the instant shown the 100-lb block A is moving down the plane at 6 ft/s while being attached to the 50-lb block B. At the instant shown the 100-lb block A is moving down the plane at 6 ft/s while being attached to the 50-lb block B. The coefficient of kinetic friction between the block and the incline is uk = 0.3. Neglect the mass of the pulleys and cables. (Figure 1) Part A Determine the acceleration of A...
Two blocks A and B have a weight of 9 lb and 6 lb, respectively, They are resting on the incline for which the coefficients of static friction are p = 0.16 and B = 0.26. Determine the angle which will cause motion of one of the blocks. What is the friction force under each of the blocks when this occurs? The spring has a stiffness of k = 2 lb/ft and is originally unstretched (Figure 1) Part A Determine...
The blocks A and B weigh 13 and 35 lb, respectively. They are connected together by a light cord and ride in the frictionless grooves. The blocks are released from rest. (F gure 1) Part A Determine the speed of block A after it moves 6 ft up along the plane. Express your answer to three significant figures and include the appropriate units. HA th + ? VA Value Units Submit Request Answer Part 8 Determine the speed of block...
Problem 18.63 8 of 14 > Review Part A The system consists of 60-lb and 25-lb blocks A and B, respectively, and 5-lb pulleys C and D that can be treated as thin disks. Assume that the cord does not slip on the pulleys, and neglect the mass of the cord. (Figure 1) Determine the speed of block A after block B has risen 5 ft, starting from rest. Express your answer to three significant figures and include the appropriate...
The weights of the 2 boxes are WA 65 lb and WB 130 lb. The coefficient of static friction between all surfaces is u,-0.15. The two blocks are connected to each other by a cable that loops around a frictionless pulley. What is the largest force F for which equilibrium is maintained. 20°
Problem 1: At a given instant the 10-lb block A is moving downward with a speed of 6 ft s. Determine its speed 2 s later. Block B has a weight of 4 lb, and the coefficient of kinetic friction between it and the horizontal plane is 0.2. Neglect the mass of the cord and pulleys. B A