310. When are couples said to be like and when unlike ? When will two unlike couples balance each FORCES- MOMENTS. 85 other ? (1) If a system of forces is represented in magnitude and position by the sides of a plane poly- gon taken in order, show that the system must be equivalent to a couple. (2) If the sides of a parallelo- gram taken in order represent a system of forces act- ing upon a body, express the moment of the couple to which the system of forces is equivalent.
310. When are couples said to be like and when unlike ? When will two unlike couples balance each FORCES- MOMENTS. 85 other ? (1) If a system of forces is represented in magnitude and position by the sides of a plane poly- gon taken in order, show that the system must be equivalent to a couple. (2) If the sides of a parallelo- gram taken in order represent a system of forces act- ing upon a body, express the moment of the couple to which the system of forces is equivalent.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Solve the couple problem and Draw the figure
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