Lesson: Triangle of Forces Mathematics • Second Year of Secondary School

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In this lesson, we will learn how to solve problems about the equilibrium of a particle under the action of three forces meeting at a point using the resultant of forces or triangle of force method.

Lesson Plan

Students will be able to

find a missing force in a system in equilibrium using the triangle of forces rule,
understand the conditions for equilibrium under two forces,
understand the conditions for equilibrium under three coplanar forces meeting at a point and apply this to examples.