Equilibrium Of A Rigid Body

Question: Determine the horizontal and vertical components of reaction at the pin A and the reaction at the roller support B required for equilibrium of the truss.
[A].

Ax = 0, Ay = 333 lb, NB = 267 lb

[B].

Ax = 462 lb, Ay = 66.7 lb, NB = 533 lb

[C].

Ax = 267 lb, Ay = 223 lb, NB = 377 lb

[D].

Ax = 154.0 lb, Ay = 333 lb, NB = 308 lb

Answer: Option D

Explanation:

No answer description available for this question.

Question: Compute the horizontal and vertical components of force at pin B. The belt is subjected to a tension of T=100 N and passes over each of the three pulleys.
[A].

Bx = 0 N, By = 141.4 N

[B].

Bx = -15.89 N, By = 120.7 N

[C].

Bx = 20.7 N, By = 157.3 N

[D].

Bx = 0, By = 100.0 N

Answer: Option B

Explanation:

No answer description available for this question.

Question: Determine the tension in the supporting cables BC and BD and the components of reaction at the ball-and-socket joint A of the boom. The boom supports a drum having a weight of 200 lb. at F. Points C and D lie in the x—y plane.
[A].

Ax = 0, Ay = 150 lb, Az = 562 lb, TBC = 300 lb, TBD = 212 lb

[B].

Ax = 0, Ay = 150 lb, Az = 456 lb, TBC = 150 lb, TBD = 212 lb

[C].

Ax = 0, Ay = 267 lb, Az = 843 lb, TBC = 533 lb, TBD = lb

[D].

Ax = 0, Ay = 150 lb, Az = 500 lb, TBC = 212 lb, TBD = 212 lb

Answer: Option A

Explanation:

No answer description available for this question.

Question: A Russell’s traction is used for immobilizing femoral fractures C. If the lower leg has a weight of 8 lb, determine the weight W that must be suspended at D in order for the leg to be held in the position shown. Also, what is the tension force F in the femur and the distance which locates the center of gravity G of the lower leg? Neglect the size of the pulley at B.
[A].

x = 1.44 ft, w = 10.8 lb, F = 12.61 lb

[B].

x = 1.33 ft, w = 15.76 lb, F = 20.0 lb

[C].

x = 1.56 ft, w = 9.75 lb, F = 12.69 lb

[D].

x = 0.869 ft, w = 6.44 lb, F = 5.03 lb

Answer: Option A

Explanation:

No answer description available for this question.