emch212_Midterm1

# emch212_Midterm1 - Problem 1(33 pts A man standing on top...

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: Problem 1 (33 pts) A man standing on top of a tower throws a ball, P, from A with an initial velocity, v0 = 20 ft/s. Using h = 80 ft, ,8 = 53° and 0 = 27°, determine the x andy coordinates of the point, B, where the ball strikes the slope. SW; 302 dowgbr 60mg: (0 51—2—%3 2 mt - (2) m1_m ball. melt BMW t2tg'WLd: Luz-O MM W '1— New: N703: “00/09? ~-(~°’) "*6: VOW “5 ’°"> t3" Lima w mm W Waimm; 09%») 2 V0 A‘unfﬁ— . . (5) , ag=r+vom§tvzat§ we) 2 h+y96M€<i§w _ toga/009‘ : k + 9(ng .— 00%»th Fm (Mud Feud: Wm Aqua) 39%., W9 Am“) 33" ibmgi "“(8) (WM W (’1'), we Wk) mews , A” 13mg»15‘%_~__~ (FF) VOQdoLco/‘lﬁl' a. m, org—t Qan4993&{me-mejm- MM 0 9‘) 91:4 Mgwysﬁmavlmsﬂi § axﬂolxwggong so - ~ (9 31-1. L ) M" We: r q we of N w “‘65”? W” 103 Problem 2 (32 pts) A block, A, moves outward along the slot in the rotating platform with at a rate of (4:) m/ s, where r is in seconds. The platform rotates at a constant angular velocity u) = 6 radfs. The block starts from rest at the center at I = 0 3. Determine the magnitudes of the velocity and acceleration of the block for: = 1 s. gMW : 1/09: Mi. WM A «h Lit w/s 04 ' 0H 2 Lit new has, vraﬁx’l’m 2 or m «r : w.le Am a z 9 2rd .. 9— A A3“ T 3}“) [51:60”) V’s * Ll W3L Q» 7- LC) '2 amt '8': E} veins-Veg or in max cam-rm bar of wwvéG—g At t: is) JA 2 {in + (axe) ugh/g “(it +l‘lUs Ms Jaw "Ilka Egg/L11 +111. W’s : 11-94511 git-99 Co + m9] We? all—ﬂat = as“ + 99L Ms 2 95:33—46: rel/5%”. Problem 3 (35 pts) 12, ﬁr Two airplanes A and B are ﬂying side by side along straight paths at a constant speed of 900 km/ h . Maintaining this speed, A begins to travel along the spiral path r = 1500 0 km, where 6 is in radians, whereas B continues to ﬂy along the straight line. For r = 750 km, ﬁnd the following: 1. 6 in radians . . B 2. r 1n km/h 3. éin radians/h 4. 17A and 53 in km/ h expressed in 12,429 component system 5. {SA/B in km/h expressed in 17,429 component system __. \ _. Y SW. (1) mm H qsom, 96. 50 = ﬂwzjogwA ,m _______ 1 [5-00 (2) v : 56:0) 2 \$05609) W74,L ;‘ﬂ5009]l<wx/lc » -- (2) . WOW: of O ) UCLA we W port/CZ (3) ~ {A 2 Y [11 —— . r v v A '“ u- lMY’zWDOB W 2 Y Uw Jr Y9 (:9 2 [(57909 uy+650099ﬂ93bﬂik / 5W3 “1"” - Hm) Hen“) 9A = (EM 2 Wsﬂagggééf mm: ESOOGJWS’ﬂkJ/wlk - — '(F) amt no, Koch'Wyoib'O- 9*; 8 2 300%.,“ mad/x 1500 J HE)” : L , (L9 U”? 0““ (Ll), 6A2 [méraﬁeagﬂwr . P‘SUon‘mw-at [W +05% lkm/k. (05mg aqn(l)) _ :_ 805.05 (11+ Moi-595% LMA/ﬂA- F NH) -...,,W ........... ,. \ Mum, L359= Aﬁgq-ggqu’iwum'qu ﬁg] kM/h’_ Hm) . (at) - 6N3: 7 an '” are A. 'UA' T- 805-05~?86]-229)LL“;+[q01'52§+H31'H£3)a31V-M,k ea???) A _W__,_:Wm._w,.m M 01qu ._—,. 659% (M- + Esq-cog m9) I‘M/an] I ...
View Full Document

## This note was uploaded on 10/02/2010 for the course E MECH 210 taught by Professor Somewoman during the Summer '08 term at Penn State.

### Page1 / 4

emch212_Midterm1 - Problem 1(33 pts A man standing on top...

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

View Full Document
Ask a homework question - tutors are online