Midterm exam 1

# Midterm exam 1 - NAME_ RECITATION SECTION_ MEM202-...

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NAME______________________________ RECITATION SECTION_________ MEM202- Engineering Mechanics – Statics Summer 2007 MIDTERM EXAM #1 (Closed Book, Closed Notes, Show All Work, 6 Problems) Basic Formulas: 22 2 (Law of sines) sin sin sin c 2 cos (Law of cosines) αβ γ == =+− ab c a b -1 -1 -1 222 For vector : cos , cos , cos , cos cos cos 1 (Relation between direction cosines) cos (Dot product) αβγ θ = ++ = •= A AB y x z A A A AA A AB c a b α β γ

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NAME______________________________ RECITATION SECTION_________ Problem 1 (a) (10pts) Determine the x and y components of each of the forces shown. (b) (10pts) Determine the resultant of the three forces.
NAME______________________________ RECITATION SECTION_________ Problem 2 A force acts at the origin of a coordinate system in a direction defined by the angles α = 69.3 O and γ = 57.9 O . Knowing that the y component of the force is –174.0lb, determine (a) (10pts) the angle β ,, (b) (10pts) the other components and the magnitude of the force.

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NAME______________________________ RECITATION SECTION_________ Problem 3 (20pts) Consider the volleyball net shown. Determine the angle formed by guy wires AC and AD .
NAME______________________________ RECITATION SECTION_________

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## This note was uploaded on 04/12/2009 for the course MEM 202 taught by Professor Cook during the Winter '08 term at Drexel.

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Midterm exam 1 - NAME_ RECITATION SECTION_ MEM202-...

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