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# 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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