Aluminum Copper Steel
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A: mass of box (m) = 5 kg spring constant (k) = 1000 N/m compression (d) = 1 cm = 0.01 cm
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A m1 = 1.95-kg aluminum block and a m2 = 6.85-kg copper block are connected by a light string over a frictionless pulley. The two blocks are allowed to move on a fixed steel block wedge (of angle θ = 32.0°) as shown in the figure. (For aluminum on steel, μs = 0.61 and μk = 0.47. For copper on steel, μs = 0.53 and μk = 0.36.)
(a) the acceleration of the two blocks in m/s2
(b) the tension in the string in N
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- . A 25kg wooden plate is held in place by two strings attached to the ceiling and the wall. The string attached to the ceiling makes an angle 40° with the horizontal and the string attached to the wall makes 90° with the wall. Determine the force in each string.2 3 Part B 3. A block of steel weighing 5 kg is stationary on a flat surface. A string parallel to the surface is pulled on with just enough force of 25.6N to get the block moving, What is the coefficient of static friction? (g = 9.8 m/s2) Note: F = Us N F = Static friction Hs = coefficient of static friction N = normal force = mgA 10 m long board that has a mass of 20 kg is held up by two vertical ropes. The left rope is 2 m from the left end of the board, and the other rope is 2 m from the right end of the board. A 40 kg box sits 2 m from the right end. Find the tension in the rope on the left.
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