Lecture 3

ENGINEERING MECHANICSME 201

INSTRUCTOR: SHEHARYAR MALIKBS AEROSPACE ENGINEERING

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ENGINEERING MECHANICS

MOMENT OF A FORCE – SCALAR FORMULATION

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ENGINEERING MECHANICS

RESULTANT MOMENT

MOMENT

DIRECTION and MAGNITUDE

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ENGINEERING MECHANICS

EXAMPLE PROBLEM

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• Determine the Resultant Moment of the four forces acting on the rod.

ENGINEERING MECHANICS

EXAMPLE PROBLEM

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ENGINEERING MECHANICS

EXAMPLE PROBLEM

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ENGINEERING MECHANICS

CROSS PRODUCT

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ENGINEERING MECHANICS

CARTESIAN VECTOR FORMULATION

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ENGINEERING MECHANICS

MOMENT OF A FORCE – VECTOR FORMULATION

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ENGINEERING MECHANICS

MOMENT OF A FORCE – VECTOR FORMULATION

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• Determine the Resultant Moment created by two forces at point O.

ENGINEERING MECHANICS

EXAMPLE PROBLEM

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ENGINEERING MECHANICS

EXAMPLE PROBLEM

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• Determine the moment of force at point O.

ENGINEERING MECHANICS

EXAMPLE PROBLEM

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SCALAR FORMULATION

VECTOR FORMULATION

ENGINEERING MECHANICS

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MOMENT OF A COUPLE

ENGINEERING MECHANICS

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• Determine the Magnitude and Direction of the couple moment acting on the gear

ENGINEERING MECHANICS

EXAMPLE PROBLEM

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ENGINEERING MECHANICS

EXAMPLE PROBLEM

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• Determine the resultant Couple Moment of the three couples acting on the plate

ENGINEERING MECHANICS

EXAMPLE PROBLEM