Problem 322 | Equilibrium of Force System Jhun Vert Sun, 04/19/2020 - 10:23 am

Problem 322
The Fink truss shown in Fig. P-322 is supported by a roller at A and a hinge at B. The given loads are normal to the inclined member. Determine the reactions at A and B. Hint: Replace the loads by their resultant.
 

Fink truss with windloads

 

Problem 271 | Resultant of Non-Concurrent Force System Jhun Vert Sat, 04/18/2020 - 10:15 pm

Problem 271
The three forces in Fig. P-270 create a vertical resultant acting through point A. If T is known to be 361 lb, compute the values of F and P.
 a

270-271-forces-in-xy-space.gif

 

Problem 270 | Resultant of Non-Concurrent Force System Jhun Vert Sat, 04/18/2020 - 10:13 pm

Problem 270
The three forces shown in Fig. P-270 are required to cause a horizontal resultant acting through point A. If F = 316 lb, determine the values of P and T. Hint: Apply MR = ΣMB to determine R, then MR = ΣMC to find P, and finally MR = ΣMD or Ry = ΣY to compute T.
 

270-271-forces-in-xy-space.gif

 

Problem 267 | Resultant of Non-Concurrent Force System Jhun Vert Sat, 04/18/2020 - 09:19 pm

Problem 267
The Howe roof truss shown in Fig. P-267 carries the given loads. The wind loads are perpendicular to the inclined members. Determine the magnitude of the resultant, its inclination with the horizontal, and where it intersects AB.
 

Howe roof truss