Vector Mechanics for Engineers: Statics
12th Edition
ISBN: 9781259977268
Author: Ferdinand P. Beer, E. Russell Johnston Jr., David Mazurek
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 6.4, Problem 6.126P
Solve Prob. 6.125 when (a) β = 0, (b) β = 6.
Fig. P6.125
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6 .129
PROBLEM.
The given frame is subjected to the applied loads of
P and Q.
Given:
P=146.3 kN
Q = 120.9 KN
0 = 41.82°
1. Draw the FBDs of all members.
2. Determine the force in each link- AF, BG, DG,
and EH.
Note: Neglect the weight of the members.
Determine the internal force system acting on section 1 by analyzing the FBA of (a) segment AD, and (b) segment DB
Chapter 6 Solutions
Vector Mechanics for Engineers: Statics
Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Determine the force in each member of the truss...
Ch. 6.1 - Determine the force in each member of the Gambrel...Ch. 6.1 - Determine the force in each member of the Howe...Ch. 6.1 - Using the method of joints, determine the force in...Ch. 6.1 - Prob. 6.14PCh. 6.1 - Determine the force in each member of the Warren...Ch. 6.1 - Solve Problem 6.15 assuming that the load applied...Ch. 6.1 - Determine the force in each member of the Pratt...Ch. 6.1 - The truss shown is one of several supporting an...Ch. 6.1 - Determine the force in each member of the Pratt...Ch. 6.1 - Solve Problem 6.19 assuming that the load applied...Ch. 6.1 - Determine the force in each of the members located...Ch. 6.1 - Determine the force in member DE and in each of...Ch. 6.1 - Determine the force in each of the members located...Ch. 6.1 - The portion of truss shown represents the upper...Ch. 6.1 - For the tower and loading of Prob. 6.24 and...Ch. 6.1 - Solve Problem 6.24 assuming that the cables...Ch. 6.1 - Determine the force in each member of the truss...Ch. 6.1 - Determine the force in each member of the truss...Ch. 6.1 - Determine whether the trusses of Problems 6.31a,...Ch. 6.1 - Determine whether the trusses of Problems 6.31b,...Ch. 6.1 - For the given loading, determine the zero-force...Ch. 6.1 - For the given loading, determine the zero-force...Ch. 6.1 - For the given loading, determine the zero-force...Ch. 6.1 - Determine the zero-force members in the truss of...Ch. 6.1 - The truss shown consists of six members and is...Ch. 6.1 - The truss shown consists of six members and is...Ch. 6.1 - The truss shown consists of six members and is...Ch. 6.1 - Prob. 6.38PCh. 6.1 - The truss shown consists of nine members and is...Ch. 6.1 - Solve Prob. 6.39 for P = 0 and Q = (900 N)k. 6.39...Ch. 6.1 - The truss shown consists of 18 members and is...Ch. 6.1 - The truss shown consists of 18 members and is...Ch. 6.2 - Determine the force in members BD and DE of the...Ch. 6.2 - Determine the force in members DG and EG of the...Ch. 6.2 - Determine the force in members BD and CD of the...Ch. 6.2 - Determine the force in members DF and DG of the...Ch. 6.2 - A floor truss is loaded as shown. Determine the...Ch. 6.2 - A floor truss is loaded as shown. Determine the...Ch. 6.2 - Determine the force in members CD and DF of the...Ch. 6.2 - Determine the force in members CE and EF of the...Ch. 6.2 - Determine the force in members DE and DF of the...Ch. 6.2 - Determine the force in members EG and EF of the...Ch. 6.2 - Determine the force in members DF and DE of the...Ch. 6.2 - Determine the force in members CD and CE of the...Ch. 6.2 - A Pratt roof truss is loaded as shown. Determine...Ch. 6.2 - A Pratt roof truss is loaded as shown. Determine...Ch. 6.2 - A Howe scissors roof truss is loaded as shown....Ch. 6.2 - A Howe scissors roof truss is loaded as shown....Ch. 6.2 - Determine the force in members AD, CD, and CE of...Ch. 6.2 - Determine the force in members DG, FG, and FH of...Ch. 6.2 - Determine the force in member GJ of the truss...Ch. 6.2 - Determine the force in members DG and FH of the...Ch. 6.2 - Prob. 6.63PCh. 6.2 - Prob. 6.64PCh. 6.2 - The diagonal members in the center panels of the...Ch. 6.2 - The diagonal members in the center panels of the...Ch. 6.2 - The diagonal members in the center panels of the...Ch. 6.2 - Solve Prob. 6.67 assuming that the 9-kip load has...Ch. 6.2 - Classify each of the structures shown as...Ch. 6.2 - Classify each of the structures shown as...Ch. 6.2 - 6.70 through 6.74 classify as determinate or...Ch. 6.2 - 6.70 through 6.74 classify as determinate or...Ch. 6.2 - 6.70 through 6.74 classify as determinate or...Ch. 6.2 - 6.70 through 6.74 classify as determinate or...Ch. 6.3 - For the frame and loading shown, draw the...Ch. 6.3 - For the frame and loading shown, draw the...Ch. 6.3 - Draw the free-body diagram(s) needed to determine...Ch. 6.3 - Knowing that the pulley has a radius of 0.5 m,...Ch. 6.3 - and 6.76 Determine the force in member BD and the...Ch. 6.3 - Prob. 6.76PCh. 6.3 - For the frame and loading shown, determine the...Ch. 6.3 - Determine the components of all forces acting on...Ch. 6.3 - The hydraulic cylinder CF, which partially...Ch. 6.3 - The hydraulic cylinder CF, which partially...Ch. 6.3 - Determine the components of all forces acting on...Ch. 6.3 - Determine the components of all forces acting on...Ch. 6.3 - Determine the components of the reactions at A and...Ch. 6.3 - Determine the components of the reactions at D and...Ch. 6.3 - Determine the components of the reactions at A and...Ch. 6.3 - Determine the components of the reactions at A and...Ch. 6.3 - Determine the components of the reactions at A and...Ch. 6.3 - The 48-lb load can be moved along the line of...Ch. 6.3 - The 48-lb load is removed and a 288-lb in....Ch. 6.3 - (a) Show that, when a frame supports a pulley at...Ch. 6.3 - Knowing that each pulley has a radius of 250 mm,...Ch. 6.3 - Knowing that the pulley has a radius of 75 mm,...Ch. 6.3 - Prob. 6.93PCh. 6.3 - Prob. 6.94PCh. 6.3 - A trailer weighing 2400 lb is attached to a...Ch. 6.3 - In order to obtain a better weight distribution...Ch. 6.3 - The cab and motor units of the front-end loader...Ch. 6.3 - Solve Problem 6.97 assuming that the 75-kN load...Ch. 6.3 - Knowing that P = 90 lb and Q = 60 lb, determine...Ch. 6.3 - Knowing that P = 90 lb and Q = 60 lb, determine...Ch. 6.3 - For the frame and loading shown, determine the...Ch. 6.3 - For the frame and loading shown, determine the...Ch. 6.3 - Prob. 6.103PCh. 6.3 - Prob. 6.104PCh. 6.3 - For the frame and loading shown, determine the...Ch. 6.3 - Solve Prob. 6.105 assuming that the 6-kN load has...Ch. 6.3 - The axis of the three-hinge arch ABC is a parabola...Ch. 6.3 - The axis of the three-hinge arch ABC is a parabola...Ch. 6.3 - 6.109 and 6.110 Neglecting the effect of friction...Ch. 6.3 - and 6.110 Neglecting the effect of friction at the...Ch. 6.3 - 6.111, 6.112, and 6.113 Members ABC and CDE are...Ch. 6.3 - 6.111, 6.112, and 6.113 Members ABC and CDE are...Ch. 6.3 - 6.111, 6.112, and 6.113 Members ABC and CDE are...Ch. 6.3 - Members ABC and CDE are pin-connected at C and...Ch. 6.3 - Solve Prob. 6.112 assuming that the force P is...Ch. 6.3 - Solve Prob. 6.114 assuming that the force P is...Ch. 6.3 - Four beams, each with a length of 2a, are nailed...Ch. 6.3 - Four beams, each with a length of 3a, are held...Ch. 6.3 - 6.119 through 6.121 Each of the frames shown...Ch. 6.3 - 6.119 through 6.121 Each of the frames shown...Ch. 6.3 - 6.119 through 6.121 Each of the frames shown...Ch. 6.4 - An 84-lb force is applied to the toggle vise at C....Ch. 6.4 - For the system and loading shown, draw the...Ch. 6.4 - A small barrel weighing 60 lb is lifted by a pair...Ch. 6.4 - The position of member ABC is controlled by the...Ch. 6.4 - The shear shown is used to cut and trim...Ch. 6.4 - A 100-lb force directed vertically downward is...Ch. 6.4 - Prob. 6.124PCh. 6.4 - The control rod CE passes through a horizontal...Ch. 6.4 - Solve Prob. 6.125 when (a) = 0, (b) = 6. Fig....Ch. 6.4 - The press shown is used to emboss a small seal at...Ch. 6.4 - The press shown is used to emboss a small seal at...Ch. 6.4 - The pin at B is attached to member ABC and can...Ch. 6.4 - The pin at B is attached to member ABC and can...Ch. 6.4 - Arm ABC is connected by pins to a collar at B and...Ch. 6.4 - Arm ABC is connected by pins to a collar at B and...Ch. 6.4 - The Whitworth mechanism shown is used to produce a...Ch. 6.4 - Solve Prob. 6.133 when (a) = 60, (b) = 90. Fig....Ch. 6.4 - and 6.136 Two rods are connected by a slider block...Ch. 6.4 - and 6.136 Two rods are connected by a slider block...Ch. 6.4 - 6.137 and 6.138 Rod CD is attached to the collar D...Ch. 6.4 - 6.137 and 6.138 Rod CD is attached to the collar D...Ch. 6.4 - Two hydraulic cylinders control the position of...Ch. 6.4 - Two hydraulic cylinders control the position of...Ch. 6.4 - A steel ingot weighing 8000 lb is lifted by a pair...Ch. 6.4 - If the toggle shown is added to the tongs of Prob....Ch. 6.4 - A 9-m length of railroad rail of mass 40 kg/m is...Ch. 6.4 - The gear-pulling assembly shown consists of a...Ch. 6.4 - The pliers shown are used to grip a...Ch. 6.4 - Prob. 6.146PCh. 6.4 - In using the bolt cutter shown, a worker applies...Ch. 6.4 - The upper blade and lower handle of the...Ch. 6.4 - and 6.150 Determine the force P that must be...Ch. 6.4 - and 6.150 Determine the force P that must be...Ch. 6.4 - Because the brace shown must remain in position...Ch. 6.4 - The specialized plumbing wrench shown is used in...Ch. 6.4 - Prob. 6.153PCh. 6.4 - For the frame and loading shown, determine the...Ch. 6.4 - The telescoping arm ABC is used to provide an...Ch. 6.4 - The telescoping arm ABC of Prob. 6.155 can be...Ch. 6.4 - The motion of the backhoe bucket shown is...Ch. 6.4 - Solve Prob. 6.157 assuming that the 2-kip force P...Ch. 6.4 - The gears A and D are rigidly attached to...Ch. 6.4 - In the planetary gear system shown, the radius of...Ch. 6.4 - Two shafts AC and CF, which lie in the vertical xy...Ch. 6.4 - Two shafts AC and CF, which lie in the vertical xy...Ch. 6.4 - The large mechanical tongs shown are used to grab...Ch. 6 - Using the method of joints, determine the force in...Ch. 6 - Using the method of joints, determine the force in...Ch. 6 - A stadium roof truss is loaded as shown. Determine...Ch. 6 - A stadium roof truss is loaded as shown. Determine...Ch. 6 - Determine the components of all forces acting on...Ch. 6 - Determine the components of the reactions at A and...Ch. 6 - Knowing that the pulley has a radius of 50 mm,...Ch. 6 - For the frame and loading shown, determine the...Ch. 6 - For the frame and loading shown, determine the...Ch. 6 - Water pressure in the supply system exerts a...Ch. 6 - A couple M with a magnitude of 1.5 kNm is applied...Ch. 6 - The compound-lever pruning shears shown can be...
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- 25 mm 60 mm 85 mm D 75 mm 6.136 The tongs shown are used to apply a total upward force of 45 ky on a pipe cap. Determine the forces exerted at D and F on tong ADF. E F 90 mm Fig. P6.136arrow_forwardDetermine the force in member BD and the components of the reaction at C.arrow_forward6.139 A hand-operated hydraulic cylinder has been designed for uhe where space is severely limited. Determine the magnitude of the force ca erted on the piston at D when two 90-lb forces are applied as shown. 90 lb -4 in.- - 9.2 in.- |c A 0.9 in.f 2.4 in. 0.9 in.1 2.4 in. В E 2 in. 90 lb Fig. P6.139arrow_forward
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- Arm ABC is connected by pins to a collar at B and to crank CD at C Neglecting the effect of friction, determine the couple M required to hold the system in equilibrium 'when 0= 0.Fig.P6.133arrow_forwardCan you please do 6.89 Draw the FBD and solve for the problem. Thanksarrow_forwardUsing the method of joints, determine the force in each member of the truss shown. State whether each member is in tension or compression.arrow_forward
- 4.95 The linkage of the braking system consists of the pedal arm DAB, the connecting rod BC, and the hydraulic cylinder C. At what angle 0 will the force Q be four times greater than the force P applied to the pedal? Neglect friction and the weight of the linkage. 250 mm Fig. P4.95 100 mm -100 mmarrow_forward6.142 A locking C-clamp is used to clamp two pieces of -in. steel plate. Determine the magnitude of the gripping forces produced when two 30-lb forces are applied as shown. -2.6 in.- -1.9 in. -1.3 in.- |30 lb A Bo + 0.85 in. 0.3 in. -2.6 in.- 30 lb 0.8 in. Fig. P6.142arrow_forwardSolve Prob. 4.75 when θ = 30° and P = 150 N.arrow_forward
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