My Dashboard

Lesson: Equilibrium of a rigid body under the action of two or more coplanar couples

A rigid body is said to be in equilibrium under the action of two or more coplanar couples if the sum of the algebraic measures of their moments vanishes. In this lesson, you will learn how to investigate the equilibrium of a rigid body under the action of two or more coplanar couples.

Worksheet: Equilibrium of a rigid body under the action of two or more coplanar couples • 9 Questions

Q1:

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

A the two couples are in equilibrium
B the two couples are not in equilibrium
C the two couples are equivalent
D the two couples are equivalent to a force

Q2:

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

Preview