Lesson: The Equilibrium of a Body on a Rough Horizontal Plane Mathematics

In this lesson, we will learn how to solve problems involving the equilibrium of a body on a rough horizontal plane.

Lesson Plan

Students will be able to

solve equilibrium problems on rough horizontal planes,
find the coefficient of friction between an object and a rough horizontal plane,
find the angle of friction in a given model,
find missing values in a system involving a rough horizontal plane and smooth pulleys.

Lesson Presentation

Lesson Video

Lesson Explainer

Lesson Playlist

02:48
05:49
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07:03

Lesson Worksheet

Q1:

Given that the coefficient of static friction between a body and a plane is , what is the angle of friction? Round your answer to the nearest minute if necessary.

Q2:

A body weighing 8.5 newtons rests on a rough horizontal plane. A horizontal force is acting on it causing it to be on the point of moving. Given that the force of the friction was 3.4 newtons, find the coefficient of static friction.

Q3:

A body weighing 5 N rests on a rough horizontal plane. The coefficient of friction between the body and the plane is . Given that is the magnitude of the friction force measured in newtons, express the range of its possible values as an interval.