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Dynamics Exam 2B redo

# Dynamics Exam 2B redo - 1 ‘ EGM 3400/3401 Spring 2010...

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Unformatted text preview: 1 . ‘ . ! EGM 3400/3401 Spring 2010 Exam 2 E, rub Name 50 i Lg, . Please draw a box around all your ﬁnal answers on all problems. BE SURE T 0 SHOWMA GNITUDE AND DIRECTION FOR LL VECTOR QUANTITIES. When complete, sign the honor pledge. / (\Dn my honor, I have neither given nor received unauthorized aid on this test. Signature 1. In a game of pool, ball A is moving with a velocity v0 when it strikes balls B and C, which are at rest and aligned as shown. After the collision, the three balls move in the directions indicated. The speeds v0 and vc are given as v0 = 12 ft/s and vc= 6.29 ft/s. 1a) (6 points) Draw a diagram for each of the balls showing all impulses during the collision. Only show impulses, do not show velocities. There should be three diagrams. o It ‘ 1b) (6 points) Write the equation for conservation of momentum in the x-direction. MUM/395° Mai/14403;, 9.3% MV3M37,‘iD r MVccoD50° " IC) (6 points) Write the equation for conservation of momentum in the y-direction. MVa ALAS" : mUA conLlﬁo c M25 @5314" + Mv¢Mk300 . l EGM 3400/3401 Spring 2010 Exam 2 Name ld) (6 points)» What is the magnitude of the velocity of ball B just after the collision? p . t 11% we": Vlatrﬁwﬁmsz’ with/5 ma” 0) n We Ms" rw my» v.9 WW + m? {4/5 444430“ (a) MNWW.«MW-!WWW-WWWWWMW “anyl,,,W.MWtﬂm~MW_-m‘mm sweat m pm (I) \/,v (M‘tJba @433") + V3 <M37flah-w37lﬁé>+ér2‘? (OD 300*MB08)20 ‘ .0222 \/,4 +L¢HJIYV3 1 2.301.“: {#fs 1 6) VA : tszoo VB +24%; woe/5 C5] 9&erqu {Bx ml», (0 Hit/56M“: Ml,3”(l.5100 vgw um tit/5V Vem?7,‘r°+ Alla/s @7350 9, M53 436/5 2 ’z/‘fo U3+,/?72 €+/5 7*,6074 V3 153447348 (N Z‘I‘HOS lie/5 : ,72W VJ [W23 3,?5I‘5 le) (6 points) What is the magnitude of the velocity of ball A just after the collision? Vt :(,5200(3r?517 + 23945 #5 (\Jk = 3,5031 Jet/5? ...
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Dynamics Exam 2B redo - 1 ‘ EGM 3400/3401 Spring 2010...

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