13. Exercises

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Exercise 13.1

Find the moment of each of these forces about the point O.

Image:E13.1.GIF

Answer
Answer 13.1
Solution a-f
Solution 13.1
Solution g-l
Solution 13.1a

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.

Image:E13.2.GIF

Answer
Answer 13.2
Solution
Solution 13.2


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
Answer 13.3
Solution
Solution 13.3
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