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- : Block B has a mass m and is released from rest when it is on top of cart A, which has a mass of 3kg. Determine the tension in cord CD needed to hold the cart from moving while B slides down A. Neglect friction. =30oThe two blocks (MA = 100 kg, MB = 150 kg) shown are originally at rest. Assuming that the coefficients of friction between the blocks and the inclines are ms = 0.25 and mk = 0.20, determine a. acceleration of block A b. tension in the cordA block with mass m=(24+12)kg is pulled by a horizontal force P applied at point B in Fig.3. The coefficient of kinetic friction between the surfaces is we = (5A+5)/(25+94). When the acceleration of the block is a=(1+9)/4 m/s?, determine the cable forces Tax and Top- 0=(A+8) A=1
- A block weighing 100Nis held on a 40 ̊incline by a bar attached to a 150N block on a horizontal plane. The bar, which is fastened by smooth pins at each end, is inclined 20 ̊above the horizontal. The angle of friction between each block and its plane is 18 ̊. Fin the horizontal force P applied to the 150N block which will cause to be on the point of moving (a) to the right; (b) to the left.1. How much work UP is done by the force P = 45 N on the collar?UP = _______N·m 2. How much work Ug is done by gravity on the collar?Answer: Ug = ______ N·m 3. Determine the speed of the collar as it passes position B.v =______ m/sIf the equivalent single force of the system is zero, determine the magnitude and direction of F1 and its direction if F3=458 N and F2=280 N and β=36°.
- In the system of weights shown, the 400-N block has a tendency to move up the 39°incline due to the pull of the 600-N block. The coefficient of kinetic friction between A and the incline is 0.25. Assume the pulleys are weightless and frictionless.( Note : The acceleration of Block A is twice the acceleration of Block B). a.What is the acceleration of Block B? b.What is the tension in the cable? c.What is the velocity of Block A after 4 seconds?If FB = 700 N, and FC = 560 N, determine themagnitude and coordinate direction angles of the resultantforce acting on the flag pole.If the block is 1000jg, determine the value of force P(N) that is causing the movement of the block usubstatic=0.50 and usubkinetic=0.35. A. 4700N B. 5000N C. 0 D. 4905N
- A stepladder consisting of two legs pinned together at C is resting on a rough floor. Will a 800 N worker be able to change the light bulb if he is required to climb to a height of 1.3 m? The uniform legs AC and BC weigh 110 N and 70 N, respectively. The coefficient of static friction at Aand B is 0.48.The force P is applied to the 51-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0, (b) P = 178 N, and (c) P = 228 N. (d) What value of P is required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are μs = 0.20 and μk = 0.15, respectively. The friction force is positive if up the incline, negative if down the incline. Kindly give a detailed solution, thank you!The moment diagram (answer in kips) P=8.3 kips, b = 23 ft, h=13 ft