TOPIC:TOPIC:

Study Of Free Body DiagramStudy Of Free Body Diagram

Presented By:Presented By:TAAJ GroupTAAJ Group

TALHATALHA AAONAAON AWAISAWAIS JAWADJAWAD

Free Body DiagramFree Body Diagram

A force diagram, which A force diagram, which is also known as a free is also known as a free body diagram, is a body diagram, is a sketch in which all the sketch in which all the force vectors acting on force vectors acting on an object are drawn an object are drawn with their initial points with their initial points at the location of the at the location of the object.object.

Free Body DiagramFree Body Diagram

FrictionFriction: : A force that opposes A force that opposes motion Caused by motion Caused by rough surfaces of all rough surfaces of all materials.materials.

Free-body diagrams are Free-body diagrams are used to show the relative used to show the relative magnitude and direction of magnitude and direction of all forces acting on an all forces acting on an object.object.

Free Body DiagramFree Body Diagram

This diagram This diagram shows four forces shows four forces acting upon an acting upon an object. There object. There aren’t always aren’t always four forces, For four forces, For example, there example, there could be one, could be one, two, or three two, or three forces.forces.

Free Body DiagramFree Body Diagram

•A books are at rest A books are at rest on a table top. on a table top. Diagram the forces Diagram the forces acting on a book.acting on a book.

•In this diagram, In this diagram, there are normal and there are normal and Applied forces on the Applied forces on the book.book.

ExamplesExamples

Applied Force

Normal Force

ExamplesExamples

•A Jet is Moving with A Jet is Moving with constant speed.constant speed.Diagram the forces Diagram the forces acting on a Jet.acting on a Jet.

•In this diagram, In this diagram, there are normal (lift), there are normal (lift), Applied, weight and Applied, weight and Drag (Friction) forces Drag (Friction) forces on the Jet.on the Jet.

Complex Free Body DiagramsComplex Free Body Diagrams

Consider a Free Consider a Free Body Diagram Body Diagram of Bridge. There of Bridge. There are Many Forces are Many Forces and Load Acting and Load Acting on it.on it.

Complex Free Body DiagramsComplex Free Body Diagrams

FN

W W FN

Fapp Fapp

F f

F f

θ

θ

Applications Of Free Body DiagramApplications Of Free Body Diagram

Lifting the weightLifting the weight Design DoorDesign Door

Applications Of Free Body DiagramApplications Of Free Body Diagram

Street LightsStreet Lights EngineEngine

Importance Of Free Body DiagramImportance Of Free Body Diagram

. Drawing a free body diagram can help us to determine the unknown forces on moments applied and equations of motion of the body and thus help to analyze a problem in statics or dynamics. In analysis of structures, free body diagrams for a component of a structure or part thereof are used in determining shear forces and bending moments.

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