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quiz4 - Quiz 4 Summer 2M5 Mechanics Dynamics{14:44022231...

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Unformatted text preview: Quiz 4 Summer 2M5 Mechanics: Dynamics {14:44022231] flfii’] fittlrt Named: EEELIAi C" E: fi’ :0 '_""*-...~ _._.'I x} : they 1. A Etlttkg space vehicle is observed at t = I] to pass through the origin of a newtonian‘q: 2. 131m? +1331? reference fi'amc with v1, = (lfiflmt’sfl relative to the flame. Following the detonation of " t'Ut fl;- explosive charges, the vehicle separates into three parts A, B, C of mass ltt-Dkg, fitlkg, L at M 40kg, respectively. It’s known that at t = 2.5a the positionsfo (HE, C are M555, -ltt , f“ “elicit-tangy” 24D), 13955, t], JED), C(lflfi, 45ft, 42(1) and the velocity of part A is vg = [Ziflmt’sfi - h 1 gifdiflttaao y (l 2fln1ts}j + {ldflnn‘sfik and the velocity of part figs paralfil to figl xv. plane, determine digs 1.1555: wit-me? \. velocity of part g. t '21. a d J fit I a; 4 I; 4 :“lfit'fl‘mfl‘e 113$ m Vs '1 Hinds w saws s is H‘tNt Tom‘s stamps 4.. is his this is it; it malt kgmfifii = misses-1mm Ito‘s) ‘ - - vow-sac - ti . i5 . +tioQ5t-fl asst-“fl 1.15%?) t .- its. a 15st 6L1 15% Um. - toe (stacked situated 1*. assassfisauc to K: 3.021150) =§mfi3®+ Edit; +HUF15L-fi‘: "HOE 65'3le '- ktscifltfi'i: 'FWMEQRL) l max: (9 rig-coking +HUQchD Ll} : Wtitlvhtsskufijflgicmfl sci/£10: bflfleo +6$fi®tubl§rai +wfiflu9_tg¢[email protected]$3g uduhd‘éqd‘aikgg "c t. R'. Hflwtbi—HQQULS: C: (1—) a; 'i g l a-to {155 list was dash-r ushaf-‘Utst mus)” 'I L1 lhgwtfih th‘sU'QBtQ “RE-ow : D (3) Virgil? :60? $00 \ltss who - l s-soi 2. In a game of pool, hall" ' ' ' velotiWVtS—E‘ngnifii e v.J = Suits when it stiikes balls 13 and C, which are at rest and aligned as shown. Knowing that alter the collision the three halls move in the directions indicated and assuming frictionless surfaces and perfect] elastic impact, determine the magnitudes of the velocities vi, via, and vc. n N1 B r, My? : :II as 2 T1: T1. =9 '3 start“: Fe: Esuh'teM-flwfig mt"— 'J Li: . maniacsstasis-swastika is _gipm§:hfi%1titiafifii§ ’r-“leh *3“. ra-ficfierusto‘twttftdfitsiaas‘t @‘ “estate “gt-C850“ Ems-12531. flgfla 4r ’GLLUEJj-lfifi LIE wtiosstnatf : :1th -x§sttsgggv + Hamid" {13—7 __; F; QA‘ 1 £1}: it?) 2? fix:;.%mi5 ,1 131$: 3.14mts L 1 L1 [Extra Practice) Four small disks A, B, C, D can slide freely on a fi-ictionless horizontal :4 l A surface. Disks B, C, and D are connected by light rods and are at rest in the position go a 7. tin 1 shown when disk a is struck squarely by disk at which is moving to the right with a c __ ,5 velocity vfl_= _tf;33_._5,_fti's1i. The weights of the disks are WA = W]; = We = 1511:}, and WD = Tilt-$31 3tllh. Knowing that the velocities of the disks immediately after impact are vs = v3 = —'—T835Ws i vi: = vet, and v = v i eterrnine {a} the speeds of v.3 and v9, [h] the fractions g: ”L: L_ 1.; of the initial kinetic energy of thi-sgsfim which is dissipated during the collision. is a at. with :Histss, t tacit Mischa mm“ C * me WNVZMNA-meg) {25 ”a _ IE” : fikmmo 'mfiflnhmlflgfi"mfib U7" F313? 1 digtft, “533 515?"!“(5 l Eff“ = tr,” 43} — divsts‘i smytLDA-tasfsts) + shift. [a /T w Kiss 5T; :24? Egastco 221%.570 ...
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