MidtermExamSol - Midterm Exam Summer 2005 Mechanics:...

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Unformatted text preview: Midterm Exam Summer 2005 Mechanics: Dynamics (l4:44fl:222:3 I} flfiEEflIDS SSH: 1. [15 pie] The two blocks Shem are nriginallfi.r at rest. Neglecting the maesee of the pulleys and the effect of fricticn in the pulleys and between the hlecks and the incline, determine (a) the acceleration of each bleck and (b) the tension in the cable. Xe + we: Lore-Jr 4* Ch Hale --==-'*?"§-1i: we _.'f——-i a: t; :‘esiemabt-J'T: mm Tic? Ch #- IKLl-H‘alflgbol weigh; U3 'UJE: LlD'LL F3: meet/5: Inl (“I . I...“I '1 _ ._ ' i. Effie T1510 + iflrdaw 5mfi‘a1lfifijflufi; \m-S'k ‘ ix M31 {963% Lee; '. it Midterm Exam Summer sees Mechanics: Dynamics [l4z44t1222zBl] ' memos 2. [15 pts] Boxes are transported by a conveyor belt with a velocity vnto a fixed incline at A where they slide and eventually fall off at B. Knowing that pic = 11411}, determine (a) the velocity ofthe conveyor belt if the boxes leave the incline at B with a velocity of Ends and (b) the acceleration of the boxes down the firn incline. i1 ‘- c’lt .- mt ‘ -Hsh‘-D‘=‘%“-Jfi<‘55f“‘3” “yell” r E a II _. 1 a 34:” '2 ': at: same/users" \lEl .3 Igfilg i'___ _ I —l c- :71. :4 gig 7. I r . x . , .b. i" Uri—i3 ET; - I. h} '. villi” l LP I: Liv- l- Slash :4 Uni .Llhflfigaglgu}éfii.: #19041 i Midterm Exam Summer 2065 Mechanics: Dynamics [144402221131] MWDS 3. [20 pts] A player hits a lflflg tennis ball with a horizontal initial velocity of Emits at a height of 1.5m. The hall bounces at point A and rises to a maximum height of 1m where the velocityr is lflmx's. Knowing that the duration of the impact is flflflfis, determine {a} the horizontal and (h}1.rertiesl components of the impulsive force exerted on the ball at 1 ‘r I -" oomtAon _ .. Began? WM. " lfl'mlfi «hf-ici— Input: 13 : '1': MWLJL— .J U,“ ?Q Z _- L} i: mil-h L: 5,1113 :fi'fii c ' t I L .,- " _ 1" L .- , . I} 1 xi dert- up” style A M913 gm has. use = Milne ‘55:} -T 1 Ille . y 1 r Nth reg "g slrtgh: gm; 1' fi‘ins e3 4313—? : woes; i 3 an, lL gf\t\ gear—Ix, €3n_ L _l§_ :3 , ' .2— FL . "J ' - z 2- I ‘3“ . tip-j {EMNM 'tfihsxl’ " iénflhvfllfri' Out} 9%?“ x may; a I . «—--'T‘|| at}? ‘ Fluent wt“ Trims : Lt- salon-mist F3 _ .LM-flhkt} jmlll‘uwfllq I“ JR I Wis £15“er : mitt | mew + ffi 354; : o‘x‘fizi {T‘Witts $~5bic :. WNW) W! Jr.“ — ’ H ’ H‘f. h Hut"!- " :- ¥5 : “Nagy + missus/b {1 t iii R 'n' l‘cll—‘U—aw i .__._ — _______L . [mi] Ilia. TY“ T Juli mVi; ' Midterm Exam Summer 2005 Medianies: Dynamics {14:4fifl:222:El} flfiflfifflfi 4. [2!] pts] A 31h hleck B is attached to an undefenned spring of censtsnt k = fifllbffi and is resting on a herizenta] fi'ietienless surface when it is struck by an identical hleek A moving at a speed of iii-W's. Censidering the case when the coefficient of restitution between the two blocks is e = i}, detennine (a) the maximum deflectien {if the spring and (h) the final made-en},F of block A. h- “ d n Huff If (in-[fa i lm f. a t- "f 1 H: r: i [Iii WIN" mas“ )Pliuc> DieEisfi‘ixen eecui‘s when i‘ O m \' NNH“ I £_——~- ___ - ——__ it“ 3‘? Kw wjflgfiz times—1L : (“A _ {EEEI'BEAL-ZEZEH I I Wes“- [i] “5’ 1‘“ 55M“ “@5043 a? A vs (SH/5” user-mp w SW Us.“ II'OUJLJILP back cwflhmr v "T'? M-i- m‘iinthscl aha“ 16 ML} iiwiir‘ “ta?! Slum- bike'ka- , Lhw‘éfili be aim 4.th "mug is _._ ._ 'e'i -. V‘i ' [with \‘lg 15m; 6 eze ; Perfefii‘fi fies-ht; ——prr‘ur.s§(-‘e New i031” ‘ii‘r‘k’ '___ " -' -—- - t H lug. "\in (EFT? ‘Lmrfl wfizwfi: .2 I'll!“ fl. Midtonn Exam Summer 2W5 Mechanics: Dynamics {i4:440:222:E1) osooxos 5. [15 pts] Two identical hooks},r puoks are moving on a hookoyr rink at the same spood of 1W5 in parallel and opposite dirootions when this},r strike oanh other as shown. Assuming a oooffioiont of rostitution o = i, dotomflno the magnitude and direction of the velocity of each puck after the impact. Expos-i; i; on, Wssc-'l-l5*°las~it“t ‘iaffi" N's; : \isfi-‘Js 'I swam: £1 E 0% u 9% x: I “Ls-Ni =13 161 I - 3 ss.;-o‘s '11 Elli“ - on . . i + r»... r .__ L. n flxh' m6 1", \ulfi-‘Z Ir -.._./qtia-\IET _' E’NB A 1" -'F?). Ir (In. r } i l..- __'I_ \' {TI'NEHE I :5 4'1"}: II v .—-~.: -- - "Vii R1 F lib-trim} -_g.o;{.{f5. l ---..__.1 V __ - on , A l ‘l- "Li-l __ v l“ “*‘W “MM - i J mm oi: \Jasinan“ : 5 a} .. .. a ', “ , we) “A! _ rah-F Hfiflfs O — \lsn Tga ___.$ iw;_\}é t n- so U ~ ‘lw‘W-Hs 'in so inf-5; -- l i- I5 i —"‘h- \‘l‘m' ‘1' “Hod kvfl‘o "Clo 5“1%-i,/5 Midterm Exam Summer Eflflfi Mechanics: Mommies [1414411221131] 0632mm ti. [15 pts] Car A was traveling east at ahigh Speed of 129.6 kn‘u'h when it collided at point C} With ear E, which was traveling north at TEkmfh. Car C, which was traveling west at QUkrnIh was ltltn east and 311‘: north of point D at the time of the collision. Because the pavement was wet, the driver of car C could not prevent his car from sliding into the ether two cars, and the three cars, stuck together, kept sliding until the}; hit the utilityr pole P. Knowing that the menses of care A, B, and C are respectively, lfiflflkg, l3flflkg, and lEfiflkg, and that the time elapsed from the first collieion to the stop at P was 2.43, and neglecting the forces exerted on the cars by the wet pavement, determine the coordinates f the utility' pole P —_1r . \lt .- ’Jéflia *3. Me“: taming min)? 1“— 2M1”; (mttm-fitm'i)" 2 Milifi+ int-fie + liltlxit Hm“) fill 7-541 coo)? +Jhoflflj‘_‘5¢eeo£ .I .._.J _. .._____.___.. __ 'I V ‘- ié-5fl_+aam£§-q.etgg\ ijflflnflesi C0 {:03 l LUKE-3*: if; otttjtlfihaQOi-afim # manna: fa 3- wdfinfi Clthiiqa "il’fl, 5:0 $Y‘1'it‘m—it' r 2 in +Ag~+ that + Gagmlsflxgfléj : ineffitufiwugmt + out” 3 W net—{Mg ...
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MidtermExamSol - Midterm Exam Summer 2005 Mechanics:...

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