Lesson: Equilibrium of a Rigid Body under Coplanar Couples

In this lesson, we will learn how to investigate the equilibrium of a rigid body under the action of two or more coplanar couples.

Sample Question Videos

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Worksheet: 17 Questions • 3 Videos

Q1:

If the couples and are in equilibrium, where , then find the value of .

Q2:

The moments, and , of two couples satisfy the equation . Which of the following is therefore true?

Q3:

In the shown figure, forces of magnitudes 13, 13, , , 289, and 289 newtons are acting on a rod. Given that the rod is in equilibrium, and is measured in centimetres, find the length of the rod.

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