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Determine the moment exerted by the weight of 30 (lb). a) With respect at the point E b) with respect at the point S S 30° 12 in E 13 in 40°

Determine the moment exerted by the weight of 30 (lb). a) With respect at the point E b) with respect at the point S S 30° 12 in E 13 in 40°

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The answer should be -24.9 lb.ft for point E and -50.9 lb.ft for point S. Could you explain and show the work? Thank you

**Determine the Moment Exerted by the Weight of 30 lb** **Objective:** Calculate the moment exerted by a 30 lb weight. **Tasks:** a) Determine the moment with respect to point E. b) Determine the moment with respect to point S. **Diagram Explanation:** - The image shows an arm holding a weight. The arm forms a lever, with two key angles and distances provided. - **Point E:** Positioned along the forearm. - **Point S:** Situated near the shoulder. - **Distances and Angles:** - Distance from S to E is 12 inches with an angle of 30 degrees relative to the horizontal line. - Distance from E to the weight is 13 inches with an angle of 40 degrees relative to the horizontal line. - The weight is depicted as hanging vertically downward from the hand. Use trigonometric methods and the principle of moments (Moment = Force x Distance x sin(Θ)) to solve for the moments at points E and S.
Transcribed Image Text:**Determine the Moment Exerted by the Weight of 30 lb** **Objective:** Calculate the moment exerted by a 30 lb weight. **Tasks:** a) Determine the moment with respect to point E. b) Determine the moment with respect to point S. **Diagram Explanation:** - The image shows an arm holding a weight. The arm forms a lever, with two key angles and distances provided. - **Point E:** Positioned along the forearm. - **Point S:** Situated near the shoulder. - **Distances and Angles:** - Distance from S to E is 12 inches with an angle of 30 degrees relative to the horizontal line. - Distance from E to the weight is 13 inches with an angle of 40 degrees relative to the horizontal line. - The weight is depicted as hanging vertically downward from the hand. Use trigonometric methods and the principle of moments (Moment = Force x Distance x sin(Θ)) to solve for the moments at points E and S.
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