tutorial3 - Answer =78.7 255 N 4 Determine the maximum...

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ME1300 – Statics Tutorial 3 1. The device shown is used to straighten the frames of wrecked autos. Determine the tension of each segment of the chain, i.e., AB and BC, if the force which the hydraulic cylinder DB exerts on point B is 3.50 kN, as shown. Answer = 2.99 kN, 3.78 kN 2. The unstretched length of spring AB is 2 m. If the block is held in the equilibrium position shown, determine the mass of the block at D. Answer =12.8 kg
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ME1300 – Statics Tutorial 3 3. The cords BCA and CD can each support a maximum load of 500 N (≈ 50 kg). Determine the maximum weight of the crate that can be hoisted at constant velocity, and the angle θ for equilibrium.
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Unformatted text preview: Answer =78.7, 255 N 4. Determine the maximum weight W of the block that can be suspended in the position shown if each cord can support a maximum tension of 80 N. Also, what is the angle for equilibrium? Answer = 60, 46.2 N ME1300 – Statics Tutorial 3 5. The three cables are used to support the 800-N lamp. Determine the force developed in each cable for equilibrium. Answer = 1.2 kN, 0.4 kN, 0.8 kN 6. Determine the stretch in each of the two springs required to hold the 20-kg crate in the equilibrium position shown. Each spring has an unstretched length of 2 m and a stiffness of k = 300 N/m. Answer = 327mm, 218 mm...
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