# test11 - ® COE 2001 — Test 3 — Fall 2006 Name K91...

This preview shows pages 1–4. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ® COE 2001 — Test 3 — Fall 2006 Name: K91 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 “1b” 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 (35 pts) The cross section of a structural—steel angle is shown. Neglect the curved portlons and COIlSldeI‘ the section to be composed of two rectangles. With this assumption, compute the x— and y-coordinates to the centroid of the section. Compare your re— sults~ with the published values of X = 1.65 in. and Y = 2.65 in. for the actual angle section. 8" Pb II (65 pts) — 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. (6)4: MC: Lowxmé) 4L max : ((4%:qu Cg) “5 ic:4?2,6N <g-DOHQ ‘ ‘ W W (3:9 m T . “WC ‘//{La 10 @/ Cl XX /\V£ NR QNC @~:3£:T',£g,we%m10m. a) 8148‘: #-+‘£c-v?w(wg+(/JC) épr‘SO 3% :MC'NR —<(/3c3+03c,)w\§om A NC :. LOWER} ,4) :(C : ﬁcwx : o,rNC:mO} (V (2) .9 9: (MIN @ .Luk 7 NW. Amwar: 'P;H7.01N Chg) Oﬁw‘oucﬂ: cach mac XE c QB-vuax 3M WQ 4*: mum @ dﬁm‘F Wm; Idain 4&0 @2 Mg: megwao: 8774"“) % iempawe Wﬁg: P+wgm\$oﬁ4g=26¢w> #9de 25927. 6N . 1 Arr I X z: ._ (.— 29x :90 'I (la-{ayesw Nova :13 an“ 3M?deng W‘digug OMLV ,———‘q '—5 g: A ...
View Full Document

{[ snackBarMessage ]}

### Page1 / 4

test11 - ® COE 2001 — Test 3 — Fall 2006 Name K91...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online