Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.
Homework Help

Lesson: Equivalent of a System of Coplanar Forces to a Couple

In this lesson, we will learn how to identify the conditions for a system of coplanar forces to be equivalent to a couple and find its moment.

Question Video: Finding Unknown Forces Acting on a Square to Produce an Equivalent Couple

04:13

Worksheet: Equivalent of a System of Coplanar Forces to a Couple • 15 Questions

Q1:

is a square, where the five forces, measured in newtons, are acting on it as shown in the figure. If the system of forces is equivalent to a couple, determine and .

  • A ,
  • B ,
  • C ,
  • D ,

Q2:

is a rectangle, in which , , and . Forces of magnitudes 225, 275, 265, and 135 newtons act along , , , and , respectively. If the system of forces is equivalent to a couple, Determine the magnitude of the moment of the forces.

Q3:

is a regular pentagon whose side length is 16 cm. Five forces, each of magnitude 11 N, are acting at , , , , and , respectively. If the system is equivalent to a couple, find the magnitude of its moment, considering the positive direction is , rounded to two decimal places, if needed.
Preview

Related Lessons

Related Worksheets