Statics Week-3 2014
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Transcript of Statics Week-3 2014
UNIT-4: Force System Resultants
Content
• Moment• Cross product• Moment of a force about a specified axis• Moment of a couple• Simplification of a force and couple system• Reduction of a simple distributed loading
Moment of a Force- Scalar Formulation
Exercise-1
Cross Product
Moment of a Force-Vector Formulation
Exercise-2 Determine the moment produced by the force F in about point O . Express the result as a Cartesian vector.
Exercise-3
Two forces act on the rod shown in Fig.ure. Determine the resultant moment they create about the flange at O . Express the result as a Cartesian vector
Principle of Moments-Varignon`s Theorem
Moment of a Force About a Specified Axis
Exercise 4
Determine the resultant moment of the three forces in Figure aboutthe x axis, the y axis, and the z axis.
Exercise-5