1. If the following sign weighs 125 lbs., find the tension in the supporting cable and the horizontal reaction force at the pin joint. 26" 30" JOE'S LANES
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- A carpenter holds a 15-lb 2-in. by 4-in. board as shown. If he exerts vertical forces on the board, determine the forces at A and B (use positive if the force is up and negative if down). A Answers: NA Ng i 2 B 10 lbFour l-in.-diameter pegs are attached to a board as shown. Two strings are passed around the pegs and pulled with the forces indicated. Determine the resultant couple acting on the board. 25 lb 35 lb B. 6 in. 35 lb 8 in. 25 lb Select one: а. 520 lb-in O b. 410 Ib-in c. 660 Ib-in O d. 320 lb-inThe pulley system holding a crate of unknown weight is at equilibrium. Cord BD can support a maximum load of FBD = 1860 N. www D 01 A B a. Determine the maximum weight of the crate, W. b. Determine the angle 0₁. Round your final answers to 3 significant digits/figures. ) N W = 0₁ = 12 5 13 degrees
- 3. A uniform bar 12 m long and weighing 20N is hanged by means of a rope at point A and the loads are positioned as shown in the figure. a. Draw the force diagram. b. Determine the downward pull WL from the left end that is necessary to hold the bar in equitibrium? c. Determine the magnitude of the force exerted by the rope? LIul CEILING Figure ROPEIn the figure shown, compute the following: 1. The tension in cable BD. 2. The components of the support at C.A carpenter holds a 11-lb 2-in. by 4-in. board as shown. If he exerts vertical forces on the board, determine the forces at A and B (use positive if the force is up and negative if down). B Answers: NA-1 N₂- i 1' 7' lb lb
- A carpenter holds a 17-lb 2-in. by 4-in. board as shown. If he exerts vertical forces on the board, determine the forces at A and B (use positive if the force is up and negative if down). A Answers: NA = NB = i i 3' -17 34 B 9¹ ! lb ! lborque and Gravity test POS F A 50 N force is applied at a 40° angle to a door 0.6 meters from the door hinge. Determine the torque applied to the door. O 53.6 N m O 19.3 N-m O 23 N m O 30 N m 3 4. 6.The uniform boom shown below weighs 3,240 N. It is supported by the horizontal guy wire and by the hinged support at point A. 2,000 N 45° A What is the tension (in N) in the guy wire? What is the force on the boom due to the support at A? (Enter the magnitude in newtons and the direction in degrees counterclockwise from the +x-axis. Assume that the +x-axis is to the right.) magnitude direction ° counterclockwise from the +x-axis Does the force at A act along the boom? Yes No
- Physics for Engineer. 1. A 50.0-N body is supported by two ropes, one making 30.0o with the vertical and another making 45.0o with the horizontal as shown in the figure. What is the tension in the ropes?The leg and cast in the figure weigh 220 N (w;). Determine the weight wz and the angle alpha needed so that no force is exerted on the hip joint by the leg plus the cast. 110 N2. FR A carpenter holds a 6.00 m beam momentarily at rest with one end above rough floor/as shown in Figure 1. He exerted a force 100 N perpendicular to the beam. Point O 5.80m FIGURE 1 (a) Sketch the free body diagram and label the forces act on a beam. (b) Calculate the mass of the wooden beam. (c) Determine the magnitude of the force exerted by the floor on the wooden beam. ES C 9. it