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Part C An old wooden telephone pole with a single cross member was blown off center during a recent storm To temporarily stabilize the telephone pole, a repair crew has attached a cable from the end of the cross member to an eye-ring stake anchored in the ground. (Eigure.3) If the origin O of a coordinate system is placed where the pole meets the ground, the point where the cross member is attached to the pole is A(-1.50, 2.00, 25.0) ft and the point where the cable is attached to the end of the cross member is (-1.50,-3.00, 28.0) ft. The cable's direction is (1.0011.00-1.00k) and it has a tension of 175 lb. What is M., the moment that tends to twist the telephone pole due to the tension in the cable applied at point B Express your answer numerically in pound-feet to three significant figures. View Available Hint(s) M₂- ΜΕ ΑΣΦ Ivec ? lb-ft

Part C An old wooden telephone pole with a single cross member was blown off center during a recent storm To temporarily stabilize the telephone pole, a repair crew has attached a cable from the end of the cross member to an eye-ring stake anchored in the ground. (Eigure.3) If the origin O of a coordinate system is placed where the pole meets the ground, the point where the cross member is attached to the pole is A(-1.50, 2.00, 25.0) ft and the point where the cable is attached to the end of the cross member is (-1.50,-3.00, 28.0) ft. The cable's direction is (1.0011.00-1.00k) and it has a tension of 175 lb. What is M., the moment that tends to twist the telephone pole due to the tension in the cable applied at point B Express your answer numerically in pound-feet to three significant figures. View Available Hint(s) M₂- ΜΕ ΑΣΦ Ivec ? lb-ft

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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Learning Goal: To be able to calculate the moment of a torce about a specified axis When the moment of a force is computed about a point, the moment and its axis are always perpendicular to the plane that contains the force and the moment arm. In some instances it is important to find the component of This moment along a specified axis that passes through the point. In addition to scalar analysis, M., the magnitude of the moment of a force about a specified axis, can be found using the triple scalar product th, the thi Mau (rxF). T₂ Fr where u, is the unit vector that describes the direction of the specified axis and r is the position vector to the point where the force F is applied. Figure 1 of 3 - Part C ✔Correct It is possible to solve this problem using either scalar analysis or the triple scalar product, and you can use the other method to verify your answer. When the specified axis is the x, y, or 2 axis, the triple scalar product is greatly simplified. The triple scalar product can be used to find the component of a moment of force about any axis as long as the unit vector u along the specified axis is found. Previous Answers M₁- An old wooden telephone pole with a single cross member was blown off center during a recent storm To temporarily stabilize the telephone pole, a repair crew has attached a cable from the end of the cross member to an eye-ring stake anchored in the ground. (Eigure 3) If the origin O of a coordinate system is placed where the pole meets the ground, the point where the cross member is attached to the pole is A(-1.50, 2.00, 25.0) ft and the point where the cable is attached to the end of the cross member is B(-1.50,-3.00, 28.0) ft. The cable's direction is (1.00-1.00-1.00k) and it has a tension of 175 lb. What is M., the moment that tends to twist the telephone pole due to the tension in the cable applied at point B? Express your answer numerically in pound-feet to three significant figures. ▸ View Available Hint(s) Submit 195] ΑΣΦ. 11 Ivec Bevis ? lb-ft
Transcribed Image Text:Learning Goal: To be able to calculate the moment of a torce about a specified axis When the moment of a force is computed about a point, the moment and its axis are always perpendicular to the plane that contains the force and the moment arm. In some instances it is important to find the component of This moment along a specified axis that passes through the point. In addition to scalar analysis, M., the magnitude of the moment of a force about a specified axis, can be found using the triple scalar product th, the thi Mau (rxF). T₂ Fr where u, is the unit vector that describes the direction of the specified axis and r is the position vector to the point where the force F is applied. Figure 1 of 3 - Part C ✔Correct It is possible to solve this problem using either scalar analysis or the triple scalar product, and you can use the other method to verify your answer. When the specified axis is the x, y, or 2 axis, the triple scalar product is greatly simplified. The triple scalar product can be used to find the component of a moment of force about any axis as long as the unit vector u along the specified axis is found. Previous Answers M₁- An old wooden telephone pole with a single cross member was blown off center during a recent storm To temporarily stabilize the telephone pole, a repair crew has attached a cable from the end of the cross member to an eye-ring stake anchored in the ground. (Eigure 3) If the origin O of a coordinate system is placed where the pole meets the ground, the point where the cross member is attached to the pole is A(-1.50, 2.00, 25.0) ft and the point where the cable is attached to the end of the cross member is B(-1.50,-3.00, 28.0) ft. The cable's direction is (1.00-1.00-1.00k) and it has a tension of 175 lb. What is M., the moment that tends to twist the telephone pole due to the tension in the cable applied at point B? Express your answer numerically in pound-feet to three significant figures. ▸ View Available Hint(s) Submit 195] ΑΣΦ. 11 Ivec Bevis ? lb-ft
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Please see the values of Coordinates A, B clearly these are not the same as you mentioned in solution

Learning Goal: To be able to calculate the moment of a torce about a specified axis When the moment of a force is computed about a point, the moment and its axis are always perpendicular to the plane that contains the force and the moment arm. In some instances it is important to find the component of This moment along a specified axis that passes through the point. In addition to scalar analysis, M., the magnitude of the moment of a force about a specified axis, can be found using the triple scalar product th, the thi Mau (rxF). T₂ Fr where u, is the unit vector that describes the direction of the specified axis and r is the position vector to the point where the force F is applied. Figure 1 of 3 - Part C ✔Correct It is possible to solve this problem using either scalar analysis or the triple scalar product, and you can use the other method to verify your answer. When the specified axis is the x, y, or 2 axis, the triple scalar product is greatly simplified. The triple scalar product can be used to find the component of a moment of force about any axis as long as the unit vector u along the specified axis is found. Previous Answers M₁- An old wooden telephone pole with a single cross member was blown off center during a recent storm To temporarily stabilize the telephone pole, a repair crew has attached a cable from the end of the cross member to an eye-ring stake anchored in the ground. (Eigure 3) If the origin O of a coordinate system is placed where the pole meets the ground, the point where the cross member is attached to the pole is A(-1.50, 2.00, 25.0) ft and the point where the cable is attached to the end of the cross member is B(-1.50,-3.00, 28.0) ft. The cable's direction is (1.00-1.00-1.00k) and it has a tension of 175 lb. What is M., the moment that tends to twist the telephone pole due to the tension in the cable applied at point B? Express your answer numerically in pound-feet to three significant figures. ▸ View Available Hint(s) Submit 195] ΑΣΦ. 11 Ivec Bevis ? lb-ft
Transcribed Image Text:Learning Goal: To be able to calculate the moment of a torce about a specified axis When the moment of a force is computed about a point, the moment and its axis are always perpendicular to the plane that contains the force and the moment arm. In some instances it is important to find the component of This moment along a specified axis that passes through the point. In addition to scalar analysis, M., the magnitude of the moment of a force about a specified axis, can be found using the triple scalar product th, the thi Mau (rxF). T₂ Fr where u, is the unit vector that describes the direction of the specified axis and r is the position vector to the point where the force F is applied. Figure 1 of 3 - Part C ✔Correct It is possible to solve this problem using either scalar analysis or the triple scalar product, and you can use the other method to verify your answer. When the specified axis is the x, y, or 2 axis, the triple scalar product is greatly simplified. The triple scalar product can be used to find the component of a moment of force about any axis as long as the unit vector u along the specified axis is found. Previous Answers M₁- An old wooden telephone pole with a single cross member was blown off center during a recent storm To temporarily stabilize the telephone pole, a repair crew has attached a cable from the end of the cross member to an eye-ring stake anchored in the ground. (Eigure 3) If the origin O of a coordinate system is placed where the pole meets the ground, the point where the cross member is attached to the pole is A(-1.50, 2.00, 25.0) ft and the point where the cable is attached to the end of the cross member is B(-1.50,-3.00, 28.0) ft. The cable's direction is (1.00-1.00-1.00k) and it has a tension of 175 lb. What is M., the moment that tends to twist the telephone pole due to the tension in the cable applied at point B? Express your answer numerically in pound-feet to three significant figures. ▸ View Available Hint(s) Submit 195] ΑΣΦ. 11 Ivec Bevis ? lb-ft
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