he third force so that the resultant of the three forces is vertically downward with a magnitude of 1260 lb. 30 lb wers: 44 33° lb 440 lb
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- Two rods and one cable are attached to the supports at O. If two of the forces are as shown, determine the magnitude F and direction of the third force so that the resultant of the three forces is vertically downward with a magnitude of 1210 lb. F 990 lb 600 lb 8 Answers: F= i 0 = i 42° 30° lb 0Two rods and one cable are attached to the supports at O. If two of the forces are as shown, determine the magnitude F and direction of the third force so that the resultant of the three forces is vertically downward with a magnitude of 1060 lb. 840 lb Answers: F= 0= i 8 i 48 -CT 231 lb 0 400 lbQ3/ Two forces are applied to the construction bracket as shown. Determine the angle e which makes the resultant of the two forces vertical. Determine the magnitude R of the resultant. Use the parallelogram law. F1 = 800 lb y F2 = 425 lb %3D 70
- Two rods and one cable are attached to the supports at O. If two of the forces are as shown, determine the magnitude F and direction 0 of the third force so that the resultant of the three forces is vertically downward with a magnitude of 1380 Ib. 830 lb 310 Ib 47° 22 Answers: F = i Ib iQ3b. Force vectors F1 and F2 act on body P with the resultant force vector R. The resultant force R = 350 N and the angle between R and the x-axis is of 35°. If F1 = 180 N and the angle between F1 and the x-axis is 72º, determine the angle between F2 and the x-axis. Assume coplanar vector forces and give your answer in degrees to two decimal places. y F1 R F2 Body, P Answer:FA FB The truck is to be towed using two ropes. Determine the magnitude of force FA and FR acting on each rope in order to develop a resultant force of 800 N directed along the positive x axis. Given that a = 33° and B = 37°, The magnitude of FA is (round to one decimal place) : The magnitude of FB is (round to one decimal place) : N
- Find the values for F; and 0 such that the resultant of the 3 forces acting on the bracket lies on the u axis and has a magnitude of 250 lbs. 45° 70° = 120 lbs F: = 40 Ibs CDQ1: The 100 lb force of Figure below is the resultant of the couple and four forces, three of which are shown in the diagram. Determine the fourth force and locate it with respect to point А. 100b 50b 4 120in -Ib 20b 40bQ3/ Two forces are applied to the construction bracket as shown. Determine the angle e which makes the resultant of the two forces vertical. Determine the magnitude R of the resultant. Use the parallelogram law. F, = 800 Ib y F= 425 lb 70
- Q4b. Force vectors F1 and F2 act on body Pwith the resultant force vector R. The resultant force R= 575 N and the angle between Rand the x-axis is of 320. If F1 = 275 N and the angle between F1 and the x-axis is 560, determine the angle between F2 and the x-axis. *Assume coplanar vector forces and give your answer in degrees to two decimal places. Body, P Answer: y F1 R F2The horizontal top of a concrete column is subjected to the system of forces shown. Represent the resultant of all forces as a force R at point O and a couple M. Also specify the magnitudes of R and M. 5 kN 0.5 m 3 kN 0.5 m 3 kN 0.5 m 2 kN 0.2 m 3 kN 1 kN 1 kN 2 kN Fozm 0.2 m 0.2 m Answers: R = ( i i+ i j+ i k) kN M = ( i i+ i j+ i k) kN-m R = i kN M = kN.mQ3/ Two forces are applied to the construction bracket as shown. Determine the angle 0 which makes the resultant of the two forces vertical. Determine the magnitude R of the resultant. Use the parallelogram law. F,= 800 lb y F,= 425 lb 70