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1. A 20-b force is applied to the control rod AB as shown in Figure 2.1. Knowing that the length of the rod is 9 in. and that a 5 258, determine the moment of the force about point B by resolving the force into horizontal and vertical components.

1. A 20-b force is applied to the control rod AB as shown in Figure 2.1. Knowing that the length of the rod is 9 in. and that a 5 258, determine the moment of the force about point B by resolving the force into horizontal and vertical components.

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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PROBLEM NO. 2 ONLY

Subject Guide Topics: Coplanar Application, PRINCIPLE OF MOMENTS (VARIGNON’S THEOREM), MOMENT OF A FORCE, Applications of the cross product, Dot Product, UNIT VECTORS, VECTOR NOTATION, VECTOR ALGEBRA

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The following problems are given to assess your ability to apply vector algebra and solve moments of forces. Instructions. Solve the following problems, refer to your Assignment Guide on the specific guidelines on formats and how to submit your solution. 1. A 20-lb force is applied to the control rod AB as shown in Figure 2.1. Knowing that the length of the rod is 9 in. and that a 5 258, determine the moment of the force about point B by resolving the force into horizontal and vertical components. 2. A crate of mass 80 kg is held in the position shown in Figure 2.2. Determine: (a) the moment produced by the weight W of the crate about E, (b) the smallest force applied at A that creates a moment of equal magnitude and opposite sense about E (c) the magnitude, sense, and point of application on the bottom of the crate of the smallest vertical force that creates a moment of equal magnitude and opposite sense about E. Ja -0.6 m -0.6m - 0.6 m-0.6 191 GUIO TG 20 lb 0.5 m E 0.85 m 65 |B Fig. 2.1 Fig 2.2 ICA PIE सा
Transcribed Image Text:The following problems are given to assess your ability to apply vector algebra and solve moments of forces. Instructions. Solve the following problems, refer to your Assignment Guide on the specific guidelines on formats and how to submit your solution. 1. A 20-lb force is applied to the control rod AB as shown in Figure 2.1. Knowing that the length of the rod is 9 in. and that a 5 258, determine the moment of the force about point B by resolving the force into horizontal and vertical components. 2. A crate of mass 80 kg is held in the position shown in Figure 2.2. Determine: (a) the moment produced by the weight W of the crate about E, (b) the smallest force applied at A that creates a moment of equal magnitude and opposite sense about E (c) the magnitude, sense, and point of application on the bottom of the crate of the smallest vertical force that creates a moment of equal magnitude and opposite sense about E. Ja -0.6 m -0.6m - 0.6 m-0.6 191 GUIO TG 20 lb 0.5 m E 0.85 m 65 |B Fig. 2.1 Fig 2.2 ICA PIE सा
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