Lecture_7-Moment_of_a_Force.ppt

# Lecture_7-Moment_of_a_Force.ppt - Force System Resultants...

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Force System Resultants  Lecture 7-Moment of a Force (Sections 4.1-4.4)

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Learning Objectives Be able to understand and define moment. Right Hand Thumb rule. Be able to determine moments of a force in 2-D and 3- D cases.
Pre-requisite Knowledge Units of measurements. Trigonometry concepts. Vector concepts. Rectangular components concepts.

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Moment of a Force (scalar formulation) d F M o = Magnitude of moment Directions of moments follow right-handed rule Where d is the distance projected from the referenced point or axis to the  force and perpendicular to the force
Moment of a Force-Example 1  (scalar formulation) Determine  M x M y  and  M z : X Y Z 20 N 2 m M z   = ___ N-m M x  =  M y  = __ N-m

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Moment of a Force-Example 2  (scalar formulation) X Y Z 10 N 8 m M z   = ____ N-m M x  =  M y  = ___ N-m Determine  M x M y  and  M z :
Moment of a Force-Example 3  (scalar formulation) X Y Z 2000 N M z   = __ N-m M x  =  M y  = __ N-m Determine  M x M y  and  M z :

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## This note was uploaded on 06/14/2009 for the course CE 221 taught by Professor Buch during the Spring '08 term at Michigan State University.

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Lecture_7-Moment_of_a_Force.ppt - Force System Resultants...

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