13. Exercises
From Mechanics
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+ | ===Exercise 13.1=== | ||
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+ | Find the moment of each of these forces about the point O. | ||
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+ | [[Image:E13.1.GIF]] | ||
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+ | </div>{{#NAVCONTENT:Answer|Answer 13.1|Solution a-f|Solution 13.1|Solution g-l|Solution 13.1a}} | ||
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+ | ===Exercise 13.2=== | ||
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+ | The diagram shows the forces acting on a rectangular lamina. They all lie in the same plane. Find the total moment on the lamina about the corner ''A''. | ||
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+ | [[Image:E13.2.GIF]] | ||
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+ | </div>{{#NAVCONTENT:Answer|Answer 13.2|Solution|Solution 13.2}} | ||
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+ | ===Exercise 13.3=== | ||
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+ | A lever, of length 1.5 m, is pivoted at one end. A force of magnitude 80 N acts at the other end of the lever. The angle between the lever and the force is 60<math>{}^\circ </math>. Find the moment of this force about the pivot. | ||
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+ | </div>{{#NAVCONTENT:Answer|Answer 13.3|Solution|Solution 13.3}} |
Current revision
Theory | Exercises | Video |
Exercise 13.1
Exercise 13.2
The diagram shows the forces acting on a rectangular lamina. They all lie in the same plane. Find the total moment on the lamina about the corner A.
Answer
Solution
Exercise 13.3
A lever, of length 1.5 m, is pivoted at one end. A force of magnitude 80 N acts at the other end of the lever. The angle between the lever and the force is 60\displaystyle {}^\circ . Find the moment of this force about the pivot.
Answer
Solution