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phys105-20091shortexamIII

# phys105-20091shortexamIII - METU NCC Short Exam Ill...

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Unformatted text preview: METU NCC Short Exam Ill 14-12—2009 Phys 105 Time:25 min. Name : std. 110.: section: Q. '. A ball Ofmass ml: 0.2 kg and velocity v]: 7. Oi m/s \ Vag- . on a frictionless horizontal table collides with a second ball i3 / 3 T L... J of mass m2: 0. 3 kg and velocity v2=~2. O i+2. Oj rn/s After m m, the collision the second ball comes to rest See the ﬁgure. ‘ V1 ma x 2: a) What is the velocity of the center of mass before the v1 collision? Give your answer in unit vector notation. I \@ m1 I ' ’7 'T’. ‘* '7 A /\ 4 (12:) _,, MAJ", +sz'z __' O.2;7.o 1 +0.3x(_2-01 14-03) M|+ML 0.5— :(1-6’1‘H-13) 14/; 3) What is the velocity of the ﬁrst ball after the collision? Give your answer in unit vector notation. ’76) ’7 ‘7 ___7 CM 50—0163)!!- Misqu-if :) Is the collision elastic ? If not, how much kinetic energy was lost during the collision? K"- iMWi émtdfsgozxm ﬂe’ as 3);: .413“ k£;-12;M1‘::. “ii—0.2." 2527—433“ kf—a‘Ki =9 The. Caiil\$i\0n is nol elasiic _ 4K: Harm‘s —3.{T Energy Ldftt g .6 T ”_______ / ...
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