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- The homogeneous 240-lb bar is supported by a rough horizontal surface at A, a smooth vertical surface at B, and the cable BC. Draw the FBD of the bar and count the unknowns.The 400-kg uniform beam is subjected to the three external loads shown. Compute the reactions at the support point O. The x-y plane is vertical. Positive values are to the right, up, and counterclockwise. 0 Answers: "I 1.3 m Oy= Mo= i Mi M A 1.8 KN 2.0 m 38 kN.m B kN kN 2.0 m kN.m O 38 C 3.7 kN x3) The boom shown has negligible weight, but it has sufficient strength to support the 1000 kN load without buckling. What is most nearly the tension in the supporting cable between points A and B. |1000 kN 60
- Determine the reaction at the support A of the frame. Supply the answer in kips (1000 lbs). 5 kip 7 kip 10 kip 2 kip -6 ft- -8 ft -6 ft- 8 ft -0.5 kip 6 ftCables CE and BF along with the ball and socket at A support the rigid bar ABCD. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) 3 m 2 m 4 m B F = -(750 N)k Determine the tension in each cable and the reaction components the ball and socket joint exerts on ABCD at A in newtons. (Indicate the direction with the sign of your answer.) BF = 2691 X N TCE = 1148 FAx = N Fav Faz =The 480-kg uniform beam is subjected to the three external loads shown. Compute the reactions at the support point O. Thex-y plane is vertical. Positive values are to the right, up, and counterclockwise. 16 kN-m 3.7 KN 0 B 7.4 kN 1.3 m- 1.8 m Answers: Ox- Oy - Mo- 333 kN kN 1.8 m kN-m
- Quiz 5: Determine the reaction forces in the pin A and roller B, B=35'. 100 N B $250 250 mm 150 minThe slotted arm OA rotates about a fixed axis through O. At the instant under consideration, 0 = 34°, 0 = 43 deg/s, and 0 = 28 deg/s². Determine the magnited of the force F applied by arm OA and the magnitude of the force N applied by the sides of the slot to the 0.6-kg slider B. Neglect all friction, and let L = 0.75 m. The motion occurs in a vertical plane. 0 B mThe 470-kg uniform beam is subjected to the three external loads shown. Compute the reactions at the support point O. The x-y plane is vertical. Positive values are to the right, up, and counterclockwise. 15 kN m 38 3.6 kN A B Höy 2.6 KN 1.3 m 2.0 m 2.0 m Answers: i 3 i Mo- kN KN kN-m
- Q1/ The 500-kg uniform beam is subjected to the three external loads shown. Compute the reactions at the support point O. The x-y plane is vertical. y 30 15 kN.m 3 kN В C 1.4 kN 1.2 m 1.8 m 1.8 m Q2/ A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 100 lb and a small 20-lb spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 19 lb, the scale A reads 67 lb. What is his correct weight? В ACurrent Attempt in Progress In the special position shown for the log hoist, booms AF and EG are at right angles to one another and AF is perpendicular to AB. If the hoist is handling a log weighing 4380 lb, compute the magnitudes of the forces supported by the pins at A and D in this one position due to the weight of the log. 50° A = Answers: i D= i 15" A 13' 26" B eTextbook and Media E C lb lb R 10" 3' -"( 14' GRequired information The structure shown uses members AB, BC, and BD to support an object with the weight or mass W = 100 lb. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. 40° W B α = 20° D Draw the free-body diagram needed to determine forces supported by each of these members AB, BC, and BD. The free-body diagram of point D is