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Wrench Problem

# Wrench Problem - NAME RECITATION SECTION MEM202 Engineering...

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NAME______________________________ RECITATION SECTION_________ MEM202- Engineering Mechanics – Statics Summer 2007 MIDTERM EXAM #2 (Closed Book, Closed Notes, Show All Work, 6 Problems) Basic Formulas: 2 2 2 (Law of sines) sin sin sin c 2 cos (Law of cosines) α β γ γ = = = + a b c a b ab -1 -1 -1 2 2 2 For vector : cos , cos , cos , cos cos cos 1 (Relation between direction cosines) cos (Dot product) α β γ α β γ θ = = = + + = = A A B y x z A A A A A A AB c a b α β γ

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NAME______________________________ RECITATION SECTION_________ Problem 1 It is known that the connecting rod AB exerts on the crank BC a 1.5kN force directed down and to the left along the centerline of AB . Determine the moment of that force about C (a) (8pts) (b) (7pts)
NAME______________________________ RECITATION SECTION_________ Problem 2 The tension in cable AB is 143.4N. (a) (10pts) Determine the moment about the x -axis of this tension force acting on point A . (b) (5pts) What is the moment of the tension force acting at A about line OB ?

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NAME______________________________ RECITATION SECTION_________ Problem 3 (a) (3pts each) Determine the equivalent force-couple system at the origin O for each of the three cases of forces being applied to the edge of a circular disk. (b) (2pts each)

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Wrench Problem - NAME RECITATION SECTION MEM202 Engineering...

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