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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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