test9 - COE 2001 — Test 3 ~ Fall 2006 Name PLEASE NOTE 1...

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Unformatted text preview: COE 2001 — Test 3 ~ Fall 2006 Name: PLEASE NOTE: 1. If axes are speciﬁed for a given problem, you are to use them. Do not change them in any way or you get a 0 (zero) to that question. 2 Show all work. 3. Provide units with your answers, and box them. 4 If the “lb” unit is used in this test, it means “lb-force,” NOT “lb—mass” (i.e. do NOT multiply by gravity to get a force!). 5. Deﬁne clearly any new variable you introduce in a problem based on the givens. Pb_ I (40 pts) Determine the reactions atA and B for the beam ' subjected to a combination of distributed and point loads. Pb 11 (60 pts) — l ’The three ﬂat blocks are positioned on the 30" incline as shown, and a force P parallel to the incline is applied to the middle block. The upper block is prevented from moving by a wire which attaches it to the ﬁxed support. The coefﬁcient of static friction for each of the three pairs of mating surfaces is shown. Determine the maximum value which P may have before any slipping’takes place. CZ) —-o M :Zr4.6r\) .43 1A = ogUA =763M (43 —+ Ng =67‘HU .4, 493 = 0.4969) 2 27mm) (muck) WA \/T‘ NA 2?ch gala \ ifw-MUNA rcwwwawb: ©N¢2lolQ§M g; £CMkzmM =(ic Q)P:(q4.rM bad 90 (129k “£3 C \$3wa (3)» 1335?- \$9 + mamas: glam bus/r #MLX ' 0.4 M3 = Q7L6N {w} £> 43mm '- ﬁ’e‘ﬁwauwywé) gravime ...
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test9 - COE 2001 — Test 3 ~ Fall 2006 Name PLEASE NOTE 1...

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