Equilibrium Of A Particle

Question: Determine the magnitudes ofthe forces P, R, and F required for equillibrium of point O.
[A].

R = 238 N, F = 181.0 N, P = 395 N

[B].

R = 1340 N, F = 740 N, P = 538 N

[C].

R = 419 N, F = 181.0 N, P = 395 N

[D].

R = 409 N, F = 504 N, P = 1099 N

Answer: Option D

Explanation:

No answer description available for this question.

Question: Determine the tension developed in cables OD and OB and the strut OC, required to support the 500-lb crate. The spring OA has an unstretched length of 0.2 ft and a stiffness of kOA = 350lb/ft. The force in the strut acts along the axis of the strut.
[A].

Fob = 289 lb, Foc = 175.0 lb, Fod = 131.3 lb

[B].

Fob = 86.2 lb, Foc = 175.0 lb, Fod = 506 lb

[C].

Fob = 375 lb, Foc = 0, Fod = 375 lb

[D].

Fob = 664 lb, Foc = 175.0 lb, Fod = 244 lb

Answer: Option B

Explanation:

No answer description available for this question.

Question: Determine the force in each strut and tell whether it is in tension or compression.
[A].

Fab = 1.76 lb T, Fac = 5.00 lb T, Fad = 3.53 lb C

[B].

Fab = 11.47 lb T, Fac = 25.0 lb C, Fad = 14.97 lb C

[C].

Fab = 11.47 lb C, Fac = 25.0 lb T, Fad = 14.97 lb C

[D].

Fab = 1.76 lb C, Fac = 5.00 lb T, Fad = 3.53 lb C

Answer: Option C

Explanation:

No answer description available for this question.

Question: A continuous of total length 4 m is wrapped around the small frictionless pulleys at A, B, C, and D. If the stiffness of each spring is k = 500 N/m and each spring is stretched 300 mm, determine the mass m of each block. Neglect the weight of the pulleys and cords. The springs are unstretched when d = 2 m.
[A].

m = 153.0 kg

[B].

m = 15.60 kg

[C].

m = 4.75 kg

[D].

m = 30.5 kg

Answer: Option B

Explanation:

No answer description available for this question.

Question: Determine the force F needed to hold the 4-kg lamp in the position shown.
[A].

F = 39.2 N

[B].

F = 68.0 N

[C].

F = 34.0 N

[D].

F = 19..62 N

Answer: Option A

Explanation:

No answer description available for this question.

Question: A “scale” is constructed with a 4-ft-long cord and the 10-lb block D. The cord is fixed to a pin at A and passes over two small pulleys at B and C. Determine the weight of the suspended block E if the system is in equilibrium when s = 1.5 ft.
[A].

W = 8.01 lb

[B].

W = 14.91 lb

[C].

W = 17.63 lb

[D].

W = 18.33 lb

Answer: Option D

Explanation:

No answer description available for this question.

Question: Determine the magnitude and direction of the resultant force FAB exerted along link AB by the tractive apparatus shown. The suspended mass is 10 kg. Neglect the size of the pulley at A.
[A].

FAB = 170.0 N, = 75.0°

[B].

FAB = 170.0 N, = 15.0°

[C].

FAB = 98.1 N, = 75.0°

[D].

FAB = 98.1 N, = 15.0°

Answer: Option D

Explanation:

No answer description available for this question.