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Use Varignon's Theorem to find the moment that the forces in the diagram below exert about point A.

Use Varignon's Theorem to find the moment that the forces in the diagram below exert about point A.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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0: IV IN 3G lecture 3_24c5f.. > 8 ft 6 ft 5 ft- 30 F = 160 lb 6+ (MF,)a = -375(8) = -3000 lb · ft = 3.00 kip • ft (Clockwise) S+ (MF,)A = -500( = -5600 lb · ft = 5.60 kip • ft (Clockwise) S+ (Mr,)A = -160(cos 30°)(19) + 160 sin 30°(0.5) -2593 lb · ft = 2.59 kip • ft (Clockwise) TRY THIS! Determine the moment about point B of each of the three forces acting on the beam in above example. Ans: 4125, 2000, 40.0 lb . ft Mechanical Engineering Statics Науder AL-Lami Homework Use Varignon's Theorem to find the moment that the forces in the diagram below exert about point A. P 30 N 300 N L6 m 150 N 45 70 N 1.6 m Problem 2/36 2/37 A man uses a crowbar to lift the corner of a hot tub for maintenance purposes. Determine the moment made by the 350-N force about point O. Neglect the small thickness of the crowbar. Problem 2/39 2/40 A man exerts a force Fon the handle of the station- ary wheelbarrow at A. The mass of the wheelbar- row along with ita load of dirt is 85 kg with center of mass at G. For the configuration shown, what force F must the man apply at A to make the net moment about the tire contact point Bequal to zero? a50 N 18 20 650 mm Problem 2/37 Representative Problems 650 mm 2/38 An overhead view of a door is shown. If the com- pressive force F acting in the coupler arm of the hydraulic door eloser is 75 N with the orientation shown, determine the moment of this force about the hinge axis 0. 925 mm 200 Problem 240 2/41 A 150-N pull T is applied to a cord, which is wound securely around the inner hub of the drum. Deter mine the moment of T about the drum center C. At what angle ở should T'be applied so that the moment about the contact point Pis zero? 300 mm 38 mm T- 150 N 35 mm 25 mm 125 mm F-75 N 200 imm Problem 2/38 2/39 The 30-N force P is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A. Problem 241
Transcribed Image Text:0: IV IN 3G lecture 3_24c5f.. > 8 ft 6 ft 5 ft- 30 F = 160 lb 6+ (MF,)a = -375(8) = -3000 lb · ft = 3.00 kip • ft (Clockwise) S+ (MF,)A = -500( = -5600 lb · ft = 5.60 kip • ft (Clockwise) S+ (Mr,)A = -160(cos 30°)(19) + 160 sin 30°(0.5) -2593 lb · ft = 2.59 kip • ft (Clockwise) TRY THIS! Determine the moment about point B of each of the three forces acting on the beam in above example. Ans: 4125, 2000, 40.0 lb . ft Mechanical Engineering Statics Науder AL-Lami Homework Use Varignon's Theorem to find the moment that the forces in the diagram below exert about point A. P 30 N 300 N L6 m 150 N 45 70 N 1.6 m Problem 2/36 2/37 A man uses a crowbar to lift the corner of a hot tub for maintenance purposes. Determine the moment made by the 350-N force about point O. Neglect the small thickness of the crowbar. Problem 2/39 2/40 A man exerts a force Fon the handle of the station- ary wheelbarrow at A. The mass of the wheelbar- row along with ita load of dirt is 85 kg with center of mass at G. For the configuration shown, what force F must the man apply at A to make the net moment about the tire contact point Bequal to zero? a50 N 18 20 650 mm Problem 2/37 Representative Problems 650 mm 2/38 An overhead view of a door is shown. If the com- pressive force F acting in the coupler arm of the hydraulic door eloser is 75 N with the orientation shown, determine the moment of this force about the hinge axis 0. 925 mm 200 Problem 240 2/41 A 150-N pull T is applied to a cord, which is wound securely around the inner hub of the drum. Deter mine the moment of T about the drum center C. At what angle ở should T'be applied so that the moment about the contact point Pis zero? 300 mm 38 mm T- 150 N 35 mm 25 mm 125 mm F-75 N 200 imm Problem 2/38 2/39 The 30-N force P is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A. Problem 241
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