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Complete COSMOS: Online Solutions Manual Organization System
Chapter 4, Problem 50.
The rig shown consists of a 5.4-kN horizontal member ABC and a vertical
member DBE welded together at B. The rig is being used to raise a
16.2-kN crate at a distance x = 4.8 m from the vertical member DBE. If
the tension in the cable is 18 kN, determine the reaction at assuming
that E the cable is (a) anchored at F as shown in the figure, (b) attached to
the vertical member at a point located 0.4 m above E.
Vector Mechanics for Engineers: Statics and Dynamics, 8/e, Ferdinand P. Beer, E. Russell Johnston, Jr.,
Elliot R. Eisenberg, William E. Clausen, David Mazurek, Phillip J. Cornwell
2007 The McGraw-Hill Companies.

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University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 51.The rig shown consists of a 5.4-kN horizontal member ABC and a verticalmember DBE welded together at B and is used to raise a 16.2-kN crate.Determine (a) the required te

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 52.A 160-kg utility pole is used to support at C the end of an electric wire.The tension in the wire is 540 N, and the wire forms an angle of 15 withthe horizontal at C. De

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 53.Uniform rod AB of length l and mass m lies in a vertical plane and isacted upon by a couple M. The ends of the rod are connected to smallrollers which rest against frict

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 54.Rod AB of length l and negligible weight lies in a vertical plane and ispinned to blocks A and B. The weight of each block is W, and the blocksare connected by an elasti

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COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 55.A thin, uniform ring of mass m and radius R is attached by a frictionlesspin to a collar at A and rests against a small roller at B. The ring lies in avertical plane, an

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 56.A uniform rod having a length of l m and mass of 2 kg is suspended fromtwo cords AC and BC. Determine the angle corresponding to theequilibrium position when a couple M

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 57.A vertical load P is applied at end B of rod BC. The constant of the springis k, and the spring is unstretched when = 90o. (a) Neglecting theweight of the rod, express t

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 58.Cable AB is wrapped around two drums as shown. Attached to drum A isa torsion spring for which M = k , where k = 58 N m/rad and isthe angle of rotation in radians of the

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 59.A vertical load P is applied at end B of rod BC. The constant of the springis k and the spring is unstretched when = 0. (a) Neglecting the weightof the rod, express the

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 60.A slender rod AB of weight W is attached to blocks A and B which movefreely in the guides shown. The constant of the spring is k, and the springis unstretched when = 0.

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 61.The bracket ABC can be supported in the eight different ways shown. Allconnections consist of frictionless pins, rollers, or short links. In eachcase, determine whether

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 62.Eight identical 20 30-in. rectangular plates each weighing 50 lb areheld in a vertical plane as shown. All connections consist of frictionlesspins, rollers, or short lin

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 63.Horizontal and vertical links are hinged to a wheel, and forces are appliedto the links as shown. Knowing that a = 75 mm, determine the value ofP and the reaction at A.

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 64.Horizontal and vertical links are hinged to a wheel, and forces are applied to the links as shown. Determine the range of values of the distance a for which the magnitude

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 65.Using the method of Sec. 4.7, Solve Prob. 4.21.Problem 4.21: The required force to be exerted at A by lever ABC is 3 lb. Knowing that = 30 and that the spring has been st

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 66.Using the method of Sec. 4.7, Solve Prob. 4.33.Problem 4.33: Rod ABC is bent in the shape of a circular arc of radius R. Determine (a) the value of so that the magnitude

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 67.A T-shaped bracket supports a 75-lb load as shown. Determine the reactions at A and C when (a) = 90, (b) = 45.Vector Mechanics for Engineers: Statics and Dynamics, 8/e, F

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 68.A uniform plate girder weighing 6000 lb is held in a horizontal position by two crane cables. Determine the angle and the tension in each cable.Vector Mechanics for Engin

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 69.To remove a nail, a small block of wood is placed under a crowbar, and a horizontal force P is applied as shown. Knowing that l = 88 mm and P = 130 N, determine the vertic

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 70.To remove a nail, a small block of wood is placed under a crowbar, and a horizontal force P is applied as shown. Knowing that the maximum vertical force needed to extract

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 71.A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing a = 1.8 m and that the force exerted by the worker is perpendicular to the ladder, determine, (a) t

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 72.A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing that the force exerted by the worker is perpendicular to the ladder, determine (a) the smallest val

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 73.To remove the lid from a 5-gallon pail, the tool shown is used to apply an upward and radially outward force to the bottom inside rim of the lid. Assuming that the rim res

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 74.To remove the lid from a 5-gallon pail, the tool shown is used to apply an upward and radially outward force to the bottom inside rim of the lid. Assuming that the top and

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 75.A 20-kg roller of diameter 200 mm, which is to be used on a tile floor, is resting directly on the subflooring as shown. Knowing that the thickness of each tile is 8 mm, d

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 76.A 20-kg roller of diameter 200 mm, which is to be used on a tile floor, is resting directly on the subflooring as shown. Knowing that the thickness of each tile is 8 mm, d

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 77.The clamp shown is used to hold the rough workpiece C. Knowing that the maximum allowable compressive force on the workpiece is 40 lb and neglecting the effect of friction

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 78.A small hoist is mounted on the back of a pickup truck and is used to lift a 260-lb crate. Determine (a) the force exerted on the hoist by the hydraulic cylinder BC, (b) t

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 79.The L-shaped member ACB is supported by a pin and bracket at C and by an inextensible cord attached at A and B and passing over a frictionless pulley at D. Determine (a) t

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 80.Member ABCD is supported by a pin and bracket at C and by an inextensible cord attached at A and D and passing over frictionless pulleys at B and E. Neglecting the size of

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 81.A modified peavey is used to lift an 8-in.-diameter log weighing 80 lb. Knowing that = 45 and that the force exerted at C by the worker is perpendicular to the handle of t

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 82.A modified peavey is used to lift an 8-in.-diameter log weighing 80 lb. Knowing that = 60 and that the force exerted at C by the worker is perpendicular to the handle of t

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 83.Using the method of Sec. 4.7, solve Prob. 4.17c.Problem 4.17: Determine the reactions at A and B when (a) = 0, (b) = 90, (c) = 30.Vector Mechanics for Engineers: Statics

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 84.Using the method of Sec. 4.7, solve 4.25Problem 4.25: A lever AB is hinged at C and is attached to a control cable at A. If the lever is subjected to a 60-lb vertical for

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 85.The uniform rod AB of mass m and length L is attached to two blocks which slide freely in circular slots as shown. Knowing that the rod is in equilibrium and that L = 2R,

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 86.The uniform rod AB of mass m and length L is attached to two blocks which slide freely in circular slots as shown. Knowing that = 45, determine (a) the largest value of L

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 87.The total weight of a wheelbarrow filled with gravel is 120 lb. If the wheelbarrow is held on an 18 incline in the position shown, determine the magnitude and direction of

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 88.Solve Prob. 4.87 assuming that the slope of the incline is 18 downward.Problem 4.87: The total weight of a wheelbarrow filled with gravel is 120 lb. If the wheelbarrow is

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 89.A uniform slender rod 10 in. long and weighing 0.01 lb is balanced on a glass of inner diameter 2.8 in. Neglecting friction, determine the angle corresponding to equilibri

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 90.A slender rod of length L and weight W is attached to collars which can slide freely along the guides shown. Knowing that the rod is in equilibrium, derive an expression f

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 91.A 10-kg slender rod of length L is attached to collars which can slide freely along the guides shown. Knowing that the rod is in equilibrium and that = 25, determine (a) t

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 92.A slender rod of length L is lodged between peg C and the vertical wall. It supports a load P at end A. Neglecting friction and the weight of the rod, determine the angle

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 93.An athlete is doing push-ups on an inclined board. Neglecting friction between his shoes and the board, determine the value of if he wants to limit the magnitude of the to

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 94.A uniform slender rod of length 2L and weight W rests against a. Knowing that L = 8 in., determine (a) the angle , (b) the length a.Vector Mechanics for Engineers: Static

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 95.A uniform slender rod of mass m and length 4r rests on the surface shown and is held in the given equilibrium position by the force P. Neglecting the effect of friction at

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 96.Two transmission belts pass over a double-sheaved pulley that is attached to an axle supported by bearings at A and D. The radius of the inner sheave is 125 mm and the rad

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 97.Gears A and B are attached to a shaft supported by bearings at C and D. The diameters of gears A and B are 6 in. and 3 in., respectively, and the tangential and radial for

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 98.Solve Prob. 4.97 assuming that for gear A the tangential and radial forces are acting at E, so that FA = ( 265 lb ) j + ( 96 lb ) k.Problem 4.97: Gears A and B are attach

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 99.A 1.2 2.4-m sheet of plywood having a mass of 18 kg has been temporarily propped against column CD. It rests at A and B on small wooden blocks and against protruding nails

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 100.For the portion of a machine shown, the 100-mm-diameter pulley A and wheel B are fixed to a shaft supported by bearings at C and D. The spring of constant 366 N/m is unst

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 101.Solve Prob. 4.100 for = 90.Problem 4.100: For the portion of a machine shown, the 100-mmdiameter pulley A and wheel B are fixed to a shaft supported by bearings at C and

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 102.A stack of several sheets of drywall of mass 170 kg rests on three wooden blocks placed under the edges of the stack. Determine the force exerted on each block.Vector Me

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 103.A stack of several sheets of drywall of mass 170 kg rests on three wooden blocks placed under the edges of the stack. Determine the mass and the location of the lightest

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 104.Two steel pipes AB and BC each having a weight per unit length of 5 lb/ft are welded together at B and are supported by three wires. Knowing that a = 1.25 ft, determine t

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 105.For the pipe assembly of Prob. 4.104, determine (a) the largest permissible value of a if the assembly is not to tip, (b) the corresponding tension in each wire.Problem

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 106.A camera weighing 0.53 lb is mounted on a small tripod weighing 0.44 lb. Assuming that the weight of the camera is uniformly distributed and that the line of action of th

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 107.A uniform brass rod of weight W and length 3L is bent into an equilateral triangle and then is hung from three wires as shown. Determine the tension in each wire.Vector

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 108.A uniform brass rod of weight W and length 3L is bent into an equilateral triangle and then is hung from three wires as shown. A small collar of weight W is placed on sid

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 109.A square steel sign is attached to frame ABC as shown. Knowing that the direction of the wind is perpendicular to the sign and that the wind exerts a force FW of magnitud

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 110.An opening in a floor is covered by a 4.5 6-ft sheet of plywood weighing 27 lb. The sheet is hinged at A and B and is maintained in a position slightly above the floor by

University of Florida - EGM - 2511

COSMOS: Complete Online Solutions Manual Organization SystemChapter 4, Problem 111.Solve Prob. 4.110 assuming that the small block C is moved and placed under edge DE at a point 0.75 ft from corner E.Problem 4.110: An opening in a floor is covered by a