Lesson: Equilibrium of a Rigid Body under Coplanar Couples Mathematics
In this lesson, we will learn how to investigate the equilibrium of a rigid body under the action of two or more coplanar couples.
Complete the following: If the couples and are in equilibrium, where , then .
The moments, and , of two couples satisfy the equation . Which of the following is therefore true?
is a square. The forces , 20 N, , and 20 N act along the directions ,,, and respectively. Find the value of for the system to be in an equilibrium state.