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Unformatted text preview: W 7 February 2007 CODE # 0
1:00 p.111. — 1:50 pm. PHYSICS 114 First Hour Exam INSTRUCTIONS: Answer each question. All questions carry equal weight. You should calculate your
answers to three (3) signiﬁcant ﬁgures. Your answer may not agree exactly with one of
the possible answers, but your answer, if correct should agree with one of the possible
answers to at least two (2) signiﬁcant ﬁgures. Be sure to enter the code number, found in the upper right corner of this page, in the
appropriate box in your scantron answer sheet. All information supplied by you on your
scantron sheet M be left justiﬁed, that is it must be entered beginning at the left hand
end of the entry box. l. A body moves along the xaxis starting from x0 = 7.00 m and travels out to x = 62.0
m, before turning around and traveling back to x = —8.00 In. What is the total distance traveled by this body? ' tam/tam Fae—W 2 Q1‘ {7%l—xq 111‘:,0&M 0 lo _ 3.09m 11:61.0’“
ramm— 1.00m) +(6l.bw~[—t'00n?§) —. 590m How ». mow : 11M (2%) whole trip taking 627 s. Detegmine the aviwage velocityefoz'tgiiﬁsntlrip. 5mg: 7Q:
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3. Runner A travels at a steady speed of 3.12 m/s. while runner B travels at a gﬁly
speed of 3.45 m/s. Both runners start from the same point and run along the same
road, but runner B starts 315 s after runner A. Runner B catches up to runner A after {LL : _ 9%? Bhas been runnin for: '
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, In 5 9/3“; 3 we mm 2. Ajogger runs 2.85 km due North, then turns around and runs 6.45 km due Sou , the Zmiﬁﬁ
5 W 7 February 2007 CODE # 0
1:00 pm. — 1:50 pm. 4. Starting from rest, a light plane moves down a runway with a constant acceleration of
6.25 m/sz. Determine the time taken for the plane to reach its takeoff velocity of 38.0 m/s. 6L5 army/1C Wham: a, bi? ow O wawrm‘
3.5“; —0 , . or , “ €= 32th ‘f—p—ﬁi WQLWMs/VW 5. A race car starts from rest and moves with a constant acceleration of 9.55 m/sz.
Determine the distance traveled when it has attained a velocity of 75.0 m/s. 7
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6. A train traveling with an initial velocity of 75.0 m/s slows at a constant rate to 25.0 (3 _. Lips
m/s in 27.0 5. Determine the distance traveled by the train duringthis time. U: 0 a
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7.“ plane traveling with an initial velocityoof 3.25 X 10 m/s slows at a constant rate to I
1.20 X 102 m/s during which it travels 5.27 X 104 m. Determine the acceleration of this plane as it slowed with res ect to the direction of travel of the plane. 1 0L.
u”: rob Mum—x» » H r Runny = vLW :3 cm ‘26} :20} o »———————'+’>% , ~ 10 :0 1: sz? xm‘tm 3, 0L: lw Mow/s) ~ Q13 Xlﬂ‘M/ L: _0.g{)<,Tm[5L Vo= MWOLMZS «MW/m WWW03 : _ 0.356 3» MW at m m" a
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8. A ball is dropped from a height of 65.2 m above ground level. etermine t e vaccity {/0 2 6; 2m
of the ballwhen it tn'kes the'groundH I A a \ ’
Wat/(me whammy/641mm V00 am (r: W" M 6% #01 L L L .. . : , / r) U : O VLKQ.g0M/J (0 6mm) ’2 M‘ Q
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level. Determine the time taken by the ball to reach its maximum height above the m‘ﬂmm m {Wm MW ‘3
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=3 t2 AWL : mm 4.31: aw 10. Two vectors of magnitude 4.27 u and 6.92 11 are added. Irrespective of their
directions, the only answer for the magnitude of the resultant vector, which cannot ‘\ JIM/MM (9 / 3+7» 41‘
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t 11. Vector A has compon s, A)( = 3.55 u and Ay = 4.92 1.1. Vector B hascoT'np'oneﬁts, Bx=3.45uand By=2.18 u., Determine the direction ofthe vector, é=2A+§f
(“Myriam Aggy“) 256? m 66
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a? 1603—6‘tS2L0 —. «lamb = u? m m +mmm @w
l . Vector A has components, Ax = 2.55 11 and Ay : 4.l7 u. Vector l3 has components,
Bx = 3.85 u and By = 3.51 u. Determine the magnitude of the vector, (3 = 2A — 4B . cut/ii Jim :mm ~0tMSm : «10.3%
ad. M Ma; = Neutral—Mama) : Watt ’1 C. (E; +64; :lQoaoQL +Q¥OMF . (mm Phsxl 14sp07—Exam 1_cO, Page 3 of3 ...
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This note was uploaded on 04/09/2008 for the course PHSX 114 taught by Professor Davis during the Spring '08 term at Kansas.
 Spring '08
 DAVIS

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