Vector Mechanics for Engineers: Statics
12th Edition
ISBN: 9781259977244
Author: BEER
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4.3, Problem 4.120P
PROBLEM 4.120
Solve Prob. 4.115, assuming that the hinge at B has been removed and that the hinge at A can exert an axial thrust, as well as couples about axes parallel to the x and y axes.
PROBLEM 4.115 The horizontal platform ABCD weighs 60 lb and supports a 240-lb load at its center. The platform is normally held in position by hinges at A and B and by braces CE and DE. If brace DE is removed, determine the reactions at the hinges and the force exerted by the remaining brace CE. The hinge at A does not exert any axial thrust.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Practice Problem 4.4.10: For the frame shown,
determine the magnitude of the pin reaction at B.
Neglect the weight of the frame.
3m
12AN
4.174 The weight W = 6 kN hangs from the cable which passes over the pulley
at F. Neglecting the weights of the bars and the pulley, determine the magnitude
of the pin reaction at D.
4.82 Determine the axle loads (normal forces at A, B, and C) for the ore hauler
when it is parked on a horizontal roadway with its brakes off. The masses of the
cab and the trailer are 4000 kg and 6000 kg, respectively, with centers of gravity
at D and E. Assume that the connection at F is equivalent to a smooth pin.
2.4 m- -2m–|-1.5m-|
1m
0.6 m
Fig. P4.82
Chapter 4 Solutions
Vector Mechanics for Engineers: Statics
Ch. 4.1 - Two crates, each of mass 350 kg, are placed as...Ch. 4.1 - A lever AB is hinged at C and attached to a...Ch. 4.1 - A light rod AD is supported by frictionless pegs...Ch. 4.1 - A tension of 20 N is maintained in a tape as it...Ch. 4.1 - A gardener uses a 60 N wheelbarrow to transport a...Ch. 4.1 - The gardener of Prob. 4.1 wishes to transport a...Ch. 4.1 - A 2100-lb tractor is used to lift 900 lb of grave....Ch. 4.1 - For the beam and loading shown, determine (a) the...Ch. 4.1 - A load of lumber of weight W = 25 kN is being...Ch. 4.1 - A load of lumber of weight W = 25 kN is being...
Ch. 4.1 - A hand truck is used to move a compressed-air...Ch. 4.1 - Two external shafts of a gearbox are subject to...Ch. 4.1 - Three loads are applied as shown to a light beam...Ch. 4.1 - The 10-m beam AB rests upon, but is not attached...Ch. 4.1 - The maximum allowable value of each of the...Ch. 4.1 - For the beam of Sample Prob. 4.2, determine the...Ch. 4.1 - The maximum allowable value of each of the...Ch. 4.1 - For the beam and loading shown, determine the...Ch. 4.1 - PROBLEM 4.15 The required tension in cable AB is...Ch. 4.1 - PROBLEM 4.16 Determine the maximum tension that...Ch. 4.1 - Two links AB and DE are connected by a bell crank...Ch. 4.1 - Prob. 4.18PCh. 4.1 - The bracket BCD is hinged at C and attached to a...Ch. 4.1 - The ladder AB, of length L and weight W, can be...Ch. 4.1 - The ladder AB, of length L and weight W, can be...Ch. 4.1 - A lever AB is hinged at C and attached to a...Ch. 4.1 - 4.23 and 4.24 For each of the plates and loadings...Ch. 4.1 - 4.23 and 4.24 For each of the plates and loadings...Ch. 4.1 - A rod AB, hinged at A and attached at B to cable...Ch. 4.1 - Fig. P4.25 and P4.26 4.26 A rod AB, hinged at A...Ch. 4.1 - For the frame and loading shown, determine the...Ch. 4.1 - Determine the reactions at A and C when (a) = 0,...Ch. 4.1 - Prob. 4.29PCh. 4.1 - Prob. 4.30PCh. 4.1 - Neglecting friction, determine the tension in...Ch. 4.1 - Fig. P4.31 and P4.32 4.32 Neglecting friction,...Ch. 4.1 - PROBLEM 4.33 A force P of magnitude 90 lb is...Ch. 4.1 - PROBLEM 4.34 Solve Problem 4,33 for a = 6 in,...Ch. 4.1 - Bar AC supports two 400-N loads as shown. Rollers...Ch. 4.1 - PROBLEM 4.36 A light bar AD is suspended from a...Ch. 4.1 - A 160-lb overhead garage door consists of a...Ch. 4.1 - Fig. P4.37 4.38 In Prob. 4.37, determine the...Ch. 4.1 - A movable bracket is held at rest by a cable...Ch. 4.1 - Fig. P4.39 4.40 Solve Prob. 4.39 when = 30.Ch. 4.1 - The semicircular rod ABCD is maintained in...Ch. 4.1 - Determine the range of values of for which the...Ch. 4.1 - The rig shown consists of a 1200-lb horizontal...Ch. 4.1 - Fig. P4.43 4.44 For the rig and crate of Prob....Ch. 4.1 - A 175-kg utility pole is used to support at C the...Ch. 4.1 - Knowing that the tension in wire BD is 1300 N,...Ch. 4.1 - Fig. P4.46 and P4.47 4.47 Determine the range of...Ch. 4.1 - Beam AD carries the two 40-lb loads shown. The...Ch. 4.1 - Fig. P4.48 and P4.49 4.49 For the beam and loading...Ch. 4.1 - A traffic-signal pole may be supported in the...Ch. 4.1 - A uniform rod AB with a length of l and weight of...Ch. 4.1 - Rod AD is acted upon by a vertical force P at end...Ch. 4.1 - A slender rod AB with a weigh of W is attached to...Ch. 4.1 - 4.54 and 4.55 A vertical load P is applied at end...Ch. 4.1 - 4.54 and 4.55 A vertical load P is applied at end...Ch. 4.1 - A collar B with a weight of W can move freely...Ch. 4.1 - A 400-lb weight is attached at A to the lever...Ch. 4.1 - A vertical load P is applied at end B of rod BC....Ch. 4.1 - Eight identical 500 750-mm rectangular plates,...Ch. 4.1 - A truss can be supported in the eight different...Ch. 4.2 - A 500-lb cylindrical tank, 8 ft in diameter, is to...Ch. 4.2 - Determine the reactions at A and E when =0.Ch. 4.2 - Determine (a) the value of for which the reaction...Ch. 4.2 - A 12-ft ladder, weighing 40 lb, leans against a...Ch. 4.2 - Determine the reactions at B and C when a = 30 mm.Ch. 4.2 - Determine the reactions at A and E. Fig. P4.66Ch. 4.2 - Determine the reactions at B and D when b = 60 mm....Ch. 4.2 - For the frame and loading shown, determine the...Ch. 4.2 - A 50-kg crate is attached to the trolley-beam...Ch. 4.2 - One end of rod AB rests in the corner A and the...Ch. 4.2 - For the boom and loading shown, determine (a) the...Ch. 4.2 - Prob. 4.72PCh. 4.2 - Determine the reactions at A and D when = 30.Ch. 4.2 - Determine the reactions at A and D when = 60.Ch. 4.2 - Rod AB is supported by a pin and bracket at A and...Ch. 4.2 - Solve Prob. 4.75, assuming that the 170-N force...Ch. 4.2 - The L-shaped member ACB is supported by a pin and...Ch. 4.2 - Using the method of Sec. 4.2B, solve Prob. 4.22....Ch. 4.2 - Knowing that = 30, determine the reaction (a) at...Ch. 4.2 - Prob. 4.80PCh. 4.2 - Determine the reactions at A and B when = 50....Ch. 4.2 - Determine the reactions at A and B when = 80.Ch. 4.2 - Rod AB is bent into the shape of an arc of circle...Ch. 4.2 - A slender rod of length L is attached to collars...Ch. 4.2 - Prob. 4.85PCh. 4.2 - A uniform plate girder weighing 6000 lb is held in...Ch. 4.2 - A slender rod BC with a length of L and weight W...Ch. 4.2 - A thin ring with a mass of 2 kg and radius r = 140...Ch. 4.2 - Prob. 4.89PCh. 4.2 - Prob. 4.90PCh. 4.3 - Two tape spools are attached to an axle supported...Ch. 4.3 - A 12-m pole supports a horizontal cable CD and is...Ch. 4.3 - A 20-kg cover for a roof opening is hinged at...Ch. 4.3 - END-OF-SECTION PROBLEMS 4.91 Two transmission...Ch. 4.3 - Solve Prob. 4.91, assuming that the pulley rotates...Ch. 4.3 - A small winch is used to raise a 120-lb load. Find...Ch. 4.3 - Two transmission belts pass over sheaves welded to...Ch. 4.3 - A 250 400-mm plate of mass 12 kg and a...Ch. 4.3 - Solve Prob. 4.95 for = 60. 4.95 A 250 400-mm...Ch. 4.3 - The rectangular plate shown weighs 60 lb and is...Ch. 4.3 - A load W is to be placed on the 60-lb plate of...Ch. 4.3 - An opening in a floor is covered by a 1 1.2-m...Ch. 4.3 - PROBLEM 4.100 Solve Problem 4.99, assuming that...Ch. 4.3 - PROBLEM 4.101 Two steel pipes AB and BC, each...Ch. 4.3 - PROBLEM 4.102 For the pipe assembly of Problem...Ch. 4.3 - PROBLEM 4.103 The 24-lb square plate shown is...Ch. 4.3 - PROBLEM 4.104 The table shown weighs 30 lb and has...Ch. 4.3 - PROBLEM 4.105 A 10-ft boom is acted upon by the...Ch. 4.3 - PROBLEM 4.106 The 6-m pole ABC is acted upon by a...Ch. 4.3 - PROBLEM 4.107 Solve Problem 4.106 for a = 1.5 m....Ch. 4.3 - A 3-m pole is supported by a ball-and-socket joint...Ch. 4.3 - PROBLEM 4.109 A 3-m pole is supported by a...Ch. 4.3 - PROBLEM 4.110 A 7-ft boom is held by a ball and...Ch. 4.3 - PROBLEM 4.111 A 48-in. boom is held by a...Ch. 4.3 - PROBLEM 4.112 Solve Problem 4.111, assuming that...Ch. 4.3 - PROBLEM 4.114 The bent rod ABEF is supported by...Ch. 4.3 - Prob. 4.114PCh. 4.3 - The horizontal platform ABCD weighs 60 lb and...Ch. 4.3 - PROBLEM 4.116 The lid of a roof scuttle weighs 75...Ch. 4.3 - PROBLEM 4.117 A 100-kg uniform rectangular plate...Ch. 4.3 - Solve Prob. 4.117, assuming that cable DCE is...Ch. 4.3 - PROBLEM 4.119 Solve Prob. 4.113, assuming that the...Ch. 4.3 - PROBLEM 4.120 Solve Prob. 4.115, assuming that the...Ch. 4.3 - PROBLEM 4.121 The assembly shown is used to...Ch. 4.3 - PROBLEM 4.122 The assembly shown is welded to...Ch. 4.3 - PROBLEM 4.123 The rigid L-shaped member ABC is...Ch. 4.3 - Prob. 4.124PCh. 4.3 - The rigid L-shaped member ABF is supported by a...Ch. 4.3 - Solve Prob. 4.125, assuming that the load at C has...Ch. 4.3 - Three rods are welded together to form a corner...Ch. 4.3 - Prob. 4.128PCh. 4.3 - Frame ABCD is supported by a ball-and-socket joint...Ch. 4.3 - Prob. 4.130PCh. 4.3 - Prob. 4.131PCh. 4.3 - PROBLEM 4.132 The uniform 10kg rod AB is supported...Ch. 4.3 - The frame ACD is supported by ball-and-socket...Ch. 4.3 - Solve Prob. 4.133, assuming that cable GBH is...Ch. 4.3 - The 8-ft rod AB and the 6-ft rod BC are hinged at...Ch. 4.3 - Prob. 4.136PCh. 4.3 - Prob. 4.137PCh. 4.3 - The pipe ACDE is supported by ball-and-socket...Ch. 4.3 - Solve Prob. 4.138, assuming that wire DF is...Ch. 4.3 - Two 2 4-ft plywood panels, each with a weight of...Ch. 4.3 - Solve Prob. 4.140, subject to the restriction that...Ch. 4 - A 3200-lb forklift truck is used to lift a 1700-lb...Ch. 4 - The lever BCD is hinged at C and attached to a...Ch. 4 - Determine the reactions at A and B when (a) h =0,...Ch. 4 - Neglecting friction and the radius of the pulley,...Ch. 4 - PROBLEM 4.146 Bar AD is attached at A and C to...Ch. 4 - PROBLEM 4.147 A slender rod AB, of weight W, is...Ch. 4 - PROBLEM 4.148 Determine the reactions at A and B...Ch. 4 - For the frame and loading shown, determine the...Ch. 4 - PROBLEM 4.150 A 200-mm lever and a 240-mm-diameter...Ch. 4 - The 45-lb square plate shown is supported by three...Ch. 4 - The rectangular plate shown weighs 75 lb and is...Ch. 4 - A force P is applied to a bent rod ABC, which may...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 3. The cantilever truss shown carries a vertical load of 885 lb. The truss is supported by bearings at A and B which exert the forces Ap, An and Br - The four constitute two couples which must have opposite moment effects to prevent movement of the truss. Determine the magnitude of the supporting forces. 7 ft 10 ft Ay 885 Ibarrow_forwardSOLVE THE PROBLEMS WITH METHOD OF JOINTS AND METHOD OF SECTIONS 4.152 Compute the forces in members EF, NF, and NO. E F G n 5. M P 300 kN -8 pancls e 5 m = 40 m Dimensions in meters Fig. P4.152, P4.153 4.153 Repcat Prob. 4.152 assuming that the 300-kN force is applied at O instead of L.arrow_forwardQ.3) A luggage transport truck is used to raise and lower luggage from an aircraft. A piece of luggage weighing 450 lbs. is supported in the position shown with a center of gravity at point G. The raising and lowering mechanism are connected to the truck bed by a pin support at F and a roller support at H, and to the luggage platform by a pin support at C and a roller support at D. The hydraulic strut AB is pinned at either end and used to raise and lower the mechanism. Assume the weight of all members within the mechanism are negligible, that point C is vertically aligned with F, point D is vertically aligned with H, and that the strut AB is vertically 20maint oriented. (a) Determine the support reactions at F and H in the stationary position shown. (b) Determine the force in the hydraulic strut AB and state whether it is in tension or compression. 80000000 C 2.5 ft 0.5 ft 3 ft A B F G E H D 4 ft 4 ftarrow_forward
- 4.15 The 180-kg uniform boom ABC, supported by a horizontal cable at B and a pin at A, carries a 320-kg koad at C. Determine the force in the cable and the magnitude of the pin reaction.arrow_forward5. A frame consists of members AD, DE, EH, and BG. They are connected by pins at B, D, E, and G. The frame is supported by pins at A and H, and is subjected to the forces shown, with F1 = 100 lb, F2 = 150 lb and w = 20o lb/ft. Members AD and EH are vertical, and member DE is horizontal. Determine all support reactions and pin forces. Assume all weights are negligible and that the given values are exact. 4.0 ft 4.0 ft F2 D, E 3.0 ft 2.0 ft F1 C 3.0 ft 3.0 ft В (1.5 ft W YA 2.0 ft | 1.5 ft A H X 8.0 ftarrow_forward6.83-A smooth pulley is attached to the member ABD as shown. Determine the forces in Pins D, B, A and C. [Hint-Isolate and draw the FBD of the Pulley first and find forces at Pin D; then reverse these forces on to the common point D on the member ABD. Then you may wish to take the whole frame and write the 3 equations of equilibrium, or you can take the remaining member BC (not a two-force member) and do the same to solve for reactions at A and C, both are Type 2] 50lb 5ft 4 ft D B 1 ft 3ft Carrow_forward
- Q.2) A structure system shown below supports a mass of 450 Kg. Determine the support reactions at A and B. Neglect the weights of the pulley and the bars. Note: the radius of pulley D is 175 mm. A C 600 mm 600 mm 175 mmarrow_forwardQ.5) The bent bar as shown below is supported by a cable AE, a ball-and-socket joint at O, and a journal (slider) bearing at D. At the journal bearing D, the momen support reactions and the force support reaction along y-axis are zero. The 2-kip force and the 6 kip-ft couple-moment are parallel to z-axis and applied at point B. Determine the tension in the cable AE and the support reactions at O and D. X A / 0 4 ft Z 16 kip-ft 2 ft B 2 ft 2 kips BANES 3 ft [ 1 kip = 1000 lb. ] E 14 ft yarrow_forward3. Determine all forces acting on member ABE of the frame shown. Note: D is a frictionless roller. 100 mm 100 mm 100 mm B F 100 mm DE C 150 N 200 mmarrow_forward
- Helparrow_forwardThe rigid block of mass M is supported by the three symetrically placed rods. The ends of the rods where level before the block was attached. Determine the largest allowable value of M if the properties of the rods are as listed: -Draw and label the diagram correctly, No diagram in the solution will be marked wrong. -Shortcut solution will be marked wrong.- Direction of the assumption of the equilibrium equation must be shown, no direction will be marked wrong.arrow_forwardPlease don't provide handwritten solution .....arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L
International Edition---engineering Mechanics: St...
Mechanical Engineering
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:CENGAGE L
EVERYTHING on Axial Loading Normal Stress in 10 MINUTES - Mechanics of Materials; Author: Less Boring Lectures;https://www.youtube.com/watch?v=jQ-fNqZWrNg;License: Standard YouTube License, CC-BY