PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Chapter 11, Problem 39P
To determine
The weight of the block
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Determine the unstretched length of spring AC if a force P = 100 Ib causes the angle 0= 52° for equilibrium. Cord AB
is 2 ft long. Take k = 35 lb/ft.
2 ft
2 ft
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Determine the unstretched length of spring AC if a force P = 801b causes the angle 8 = 60 ° for equilibrium. Cord AB is 2 ft long. Take k = 50 lb / ft.
Q4 / Determine the unstretched length (Lo) of spring Ac if a force P=
400 N causes the Ø=60° for equilibrium cord AB is 0.6m long . Take
K=850 N/m. As shown in fig (4)?
0.6 m
0.6 m
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Chapter 11 Solutions
PEARSON ETEXT ENGINEERING MECH & STATS
Ch. 11 - Determine the required magnitude of force P to...Ch. 11 - Determine the magnitude of force P required to...Ch. 11 - The linkage is subjected to a force P = 2 kN....Ch. 11 - Prob. 4FPCh. 11 - Determine the angle where the 50-kg bar is in...Ch. 11 - Prob. 6FPCh. 11 - The scissors jack supports a load P. Determine the...Ch. 11 - When = 20, the 50-lb uniform block compresses the...Ch. 11 - Prob. 8PCh. 11 - The thin rod of weight W rests against the smooth...
Ch. 11 - If each of the three links of the mechanism have a...Ch. 11 - Prob. 18PCh. 11 - The Nuremberg scissors is subjected to a...Ch. 11 - The potential energy of a one-degree-of-freedom...Ch. 11 - Prob. 27PCh. 11 - Prob. 28PCh. 11 - Prob. 29PCh. 11 - Prob. 30PCh. 11 - Prob. 31PCh. 11 - Prob. 32PCh. 11 - The uniform bar has a mass of 80 Kg. Determine the...Ch. 11 - Prob. 39PCh. 11 - The uniform rod has a mass of 100 kg. If the...Ch. 11 - Prob. 42PCh. 11 - The buck has a mass of 20 Mg and a mass center at...Ch. 11 - Prob. 45PCh. 11 - Prob. 1RPCh. 11 - Prob. 2RPCh. 11 - Prob. 4RPCh. 11 - Prob. 5RPCh. 11 - The uniform bar AB weighs 100 lb. If both spring...Ch. 11 - The spring attached to the mechanism has an...
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- Q2/ Determine the unstretched length of spring AC if a force P 80lb causes the angle 0 = 60° for equilibrium. Cord AB is 2 ft long. Take k = 50 lb/ft.arrow_forward1m 3.5m 2.75m 3m →Y 2m Dx m Dy m D (Dx,Dy,0) 50N The bucket at (x.y,z) = (2.2, 2.9,0) is supported by 3 slender bars as shown and is in equilibrium. You can assume the three bars behave as two-force members. Find the magnitude of the force in the bar DB. NEarrow_forwardWhat the tension developed in cable AB required for equilibrium of the 600-lb crate. If the tension in cable AC=-120 i+120j+60 K and in cable AD=D360 i 2'n -2 Select one: 180 360 lb None of these 720 lbarrow_forward
- 1. The cord AB has a length of 5 m and is attached to the end B of the spring having a stiffness k = 10 N/m. The other end of the spring is attached to a roller C so that the spring remains horizontal as it stretches. If a 10 N weight is suspended from B, determine the necessary un-stretched length of the spring, so that = 40° for equilibrium. 5 m 5 m 5 m- www k = 10 N/marrow_forward8arrow_forwardThe 437-kg uniform beam is subjected to the three external loads shown. Compute the vertical reaction (N) at the support point O if P = 4135 N, Q = 3230 N, T = 40672 Nm, x = 1.01 m, y = 1.33 m, and z = 1.58 m and the system is in equilibrium.Positive values are to the right, up, and counterclockwise. Round off only on the final answer expressed in 3 decimal places.arrow_forward
- The 10 Ib weight is supported by the cord AC, a roller and by a spring. If the spring has an unstretched length of 8 in. and the weight is in equilibrium when d = 4 in., determine the stiffness k of the spring. 12 in. in A Select one: O a.k= 4.8 lb/in Ob.k=7.8 Ib/in Oc.k=6.8 Ib/in Od.k=5.8 Ib/inarrow_forwardka block is held in equilibrium by the system of springs. Draw a free-body diagram for the ring at A. -3 m kAC = 20 N/m 3 m kAB = 30 N/m kAD = 40 N/m Darrow_forwardParvinbhaiarrow_forward
- The scissors linkage is subjected to a force of P = 150 N as shown in the figure below. Thespring is unstretched at θ = 0◦. All links have equal length of 0.3 m. Using the principles of virtualwork, determine the equation in terms of θ, for the system to be in equilibrium. Neglect the massof the links. Find the numerical value of θ, by solving the equation that you have obtained,using a numerical method. Hint: You may look for a trial and error method, or Newton’s bisectionmethod, or Newton-Raphson method, etc. Please solve the questionarrow_forwardUsing the diagram below, determine the components of reaction at theball-and-socket joint A and the tension in the supporting cables DB and DC.arrow_forwardPlease correct solutionarrow_forward
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