This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Name: _ PHYS] TK
September 25, 1111]?
Signature: _
Exam 1
Unique number 61941]
instructions: I No notes, textbooks, or similar aids are permitted. {You may use a calculator.) I Use the scantren answer sheet to provide the answers. Bubble in your name (last,
ﬁrst} and UTEID. Write your name {lash ﬁrst). tlTEIﬂ, enurse name, unique
number. Sign and date it. Mark answers for all problems. Mark. your answer sheet
using #2 pencil. Mark only one answer per problem. It" you need another soantron.
ask the instructor. . There are its problems on the exam. Each problem is worth lEtEttle = 45.25 poinﬁ. en
incorrectly answered problem is worth ﬂ points. I You must complete this exam during the class period. I Any questions you may have about the test have to be directed to the instructor or a
TA. No conversations andler collaborative work are pettnitted. 1 You may use the blank sides of the handout'for notes and calculations. I Some equations and other intbrmatien that may he'useful on this exam are provided on' the last sheet of the handout. You may not aslt questions about it. You may detach
it from the exam. but will have to ’tnm it with the rest of the exam han out at the end of the exam. o [in this exam you should always assume 3 = ltl W52. In Sign the exam handouts and return them with the seantron form. Page 1 {6; I. An object jamming on a circular path {if radius. 2.1."! meters. at a e'uns‘tant speed of 41]
True. The time 1'11 seconds required for (me revolutian is: A} 2a: 13} 1;: __   r  .
C} L? J'= EEC : M: US
D) Riga V’ {Li Fir/5) G 2* The vector C in the diagram is equal to: 4‘1} xi — £3" 13} 3+ E
® 43 + a}
D} 20039
E} 33:21:05 H} ‘1?“ 3 If :4: = [6 HIE—{3 I‘D}; then 2 has magnitude; (:3) Him ("H
B) 20m : I .. .1.—
C'} 30111 1P" KIA! AT
D) 4am r*‘;‘"_f_"‘;i
E) 51m : w; a.) + {hg’ﬁ‘j
ir—~"T*—————g
'—' Viagra} + {5%}
r? Ed... 5,1 ,
._ Kilﬂﬁrﬁ _._ {CT'H \3 4. A iﬂﬂﬂ—kg airpi'ane is ﬂying in a etrnighl line at ennstant speed. 7111:: li'iree uI' air i'rieLiun
is .1 EDD N. The net frame {in tlieplane is:
(1313) zero J H) Hﬁﬂﬂw :__ CarrF .._~_: Ax:
C} ieeun U 5 ‘f 0
D) 9800M .J .
H) nnne'nftheee _+ “G" :_. _ Eek m U 35/ 5. The graph represents the eLTnig'hl line Inelinn nl‘e ear”. How far done the ear travel between I: 2 seconds and I: 9 seeunde‘? Pings; __ 1: (EV7V1:
.. ‘5 35: ﬂats“ +‘fp'i
.. 2 5 Wm...” 'r i ii ii"
A} "£2111 ‘ Nﬁi " ': I: it}:.""1_ .; {H.‘I I,
B} 24m indhi“? 31L!—
‘3} 36m   1" — t = ‘  t' .« e —.— ia'+..i
13143111 K" Elli1 It IN] ‘56 u a I. ll
(13) ﬁﬂm
T ‘S—H f 60
n: "iii; 9,111“ 3 there; M“ I, 36 MN! "m
.191" q. 6. A ball is dl'ﬂpped from the top of a building which i521} m high. Ignoring air resistance
and taking g = II] Ina'ez= hew leng willthe hall be falling hefnre it hits the greund‘? A) I155 I .. I...
H} 1.115 if“: 15” {mini tic: l'_‘. 1.55 '
1: 2.ns _ ~. . l __ G T; G
4 2.45 C" 3 J ”a .x in. *7" m Page 3 ‘5‘ T. An airplane is [lying horizontally with ctrnstant uelccity cf magnitude Sﬂﬂ km'fhr. it is
ﬂying at an altitude of 413130 In abuse a ﬂat herizcnlal ecmﬁeld. A suitcase falls cut cf
the” airplane and falls without air resistance tc theground. AL the instant that the
suitcase hits the greund ahct'tt what is the distance item the airplane tn the snitessc'r‘ a} an km L , . as
(13334mm _? . 
c} 5.4km  ._ I
1)} 1mm . ' he: lie15mi
E} 11km l
I. .I"
I'U'Ig grimy trr {yiﬂ'nfj Mild St? ﬁgs? 3. Assuming g ; it) hits21 the weight of an chject with mass cf 33 leg is: All 33H a} seat is“ Fj' fl“:  _. t: sets ’3‘ .__?Jlilii Gm” a} r—
(Ij) BEEN  J) /F ~ 35'5“ N E} ncnc of these Q) l} A girl is running around a herizenta] circular track with a constant. speed. The dislanee
arcund the track ts 100' In It takes 5 {15 fer her 1:) run a distance cf 25 m The
magnitude cf her centripetal acceleration ts: 25mm _ _ (J by . ' _
13 1st? Ints ' ‘17 "r r 1“ :'_ ‘33 tan/c” lC' SLUT”: limes
C] 1:234 Hits1 :1 j , ,3 _ . HM?
D} 6.411135? a . a ~_—. __ﬁﬁ ._ as
E] 9'01““? 0 a: 3; WW — its IT as 77”"
r“ “3 ‘ ——~—
“Edi C, c
It TJ—J Page 4 [I ll]. ﬁaeh ei' feur pairieles move along an 3; axis. ' lIeir ennrdiniites f In meters) as functions / Inf time {in seeends} are given by I; _I1 I
pnriieiei: _e{r)= 3 5.— 2. TI 451” i .II — T‘IT
pﬂ]ﬁﬂ1ﬂ2:mx[lf}'_ 3.. 5+2.T£2 ‘I."I"i (Lg.
partieleB: xifrj=3.5+11'r Iﬁ. HI. “2.31“
apaniele4: :c{r)= 3.5— 3.4I—2J’I' _ l+ ,—C+L _ e.Li~
Whieh nl" l‘nese lInIIieles have eenslani IieeeleI'IItiIcIIIii ’
A) All fnur E) Unljiir i and 2 C 'I‘Cirnlz.I 2 and 4
Only 3 and 4
H} Nnne of them & 1 1.15m nbjeel Is lln' nwn stinighi up frem gruuni'l level with a speed nf Ell] IIII'.II lgnnring air
resistance and. taking g— — 1f] mI‘sB. _its distsnee abeve greund level 2. U seeends later 13: II III—— .II III II. C.) 50111 ﬂ‘* ._
n) 55:11 ‘4— ‘3? VI: “mile/‘3 fitn
E} sem VIIIr I‘rij’ I ’IeI’I) : ‘30' em: 5.;qu Cl 12. The'syslem shown remains at rest. The pulley is ﬁiietinnless. if ml = 6 kg, IN} = lﬂ kg,
and Ihe angle 3 =30”, what is the magnitude Infthe feree ef friction on the upper bleek‘? (Useg=lﬂ nlI'sz.) I ' Muck I: T nt‘f TF'mrj :r'I’IrIEFL, mi?
"‘3’ T: ”‘Ij l ém’ ‘ {IEM fillkl‘f'fq‘lﬁe If 13' _/
< . Herawire ‘. “l Ema: (OI! $6“ '“iI II amt}: [”9:'I”Ii:' egoIn} r .— I ' '.  .
m“. I rush— T l“ (“3. vsmﬁ ‘" ”I: : JEInFO Ii! l'e’1‘l'we'i If; Hamill 2,1 luJnu'ldl
E} 201s . y 'l r'ﬂ'wrii _U'I’ Ii‘Iel um, i.
4: '._ mnﬁ‘lrﬂﬁl I [EM ' h '
I Mr {FK'IH'JI £th H" [III‘IE (‘F I?) Page 5 13. A cannon ﬁres a projectile, which moves withouL air resistance, as Shown. The clashed
6 line shows the Irajcctorv in the absence of gravity; points MNOP correspond to the
position of the proichilc at Ell sccontl intervals. if}; = lﬂ mtsi the lengths Eff; are: A} 5 111, lit in, 15 m B} S m, 213 m, 45 in 1/ . _._ +31.
C) lﬂm,4ﬂm,9ﬂm “' Ci“
D 4tlni.8ilm,120m A a
20 In, ﬁt} on 13!} in X tell ‘— {—3 till 1? 'Elrjl
)5 [Ell ‘_ (£3513: “3,3 l}; @j Z 2 [Eh I m0 directions indicated by the arrows, with mass in] moving downward, The nullity is
frictionless. Hing: liltl kg, the angle 6= 31]” and the coefﬁcient of kinetic Friction for
the block on the inclined plane as t1] approximately vvhat is the value ofthc mass in]? (USE? We“) w ma I" ? l4. Thesyntctn shown is in motion. Both blocks are moving with constant velocity in thc
t . A} 25 kg
a} as kg 43 kg
59 kg
ﬁﬁ ks \P“ (J 15. If I 23+}; I. = A and neither} non—B" equals zero,'then:
A" 24' and 5‘ have equal magnitudes and are in opposite directions .1
if and E have equal magnitudes and lhe angle between then: is 45" __._
C) E and}?: have equal magnitudes and are perpendicular
13) 471* 2111de have equal magnitudes and'the angle between them is 1513”
E] none of these E“ l M tlil 2:. 'lJél—HEAE—i {at film (at e 1 : A [fit .f= l'i cued. it: life' .._‘\. _' " _”_ '. ' __ .. _ :IIMH—  'l l. a ——
in; IFI1H#IB.HE { %ﬂﬂ}&ﬂmﬁj: ﬁﬂjd dﬂa: $ﬂ ._ ..r ._,1 16. A dart is thrown horizontally toward X with initial speed 2] tnfs as shown. It hits ‘1' n
time 0.3 a later. 11'},r — it} infsl, the distance 10:” is: Ajlrn H {Jim 1 C. 02m 9x“ _ 4;}. int ‘ at?" : s 3n f a)“ Ejﬂﬂfflht JJ * (363] 3
><t asp” Page? .5 A — ——‘s~
15—":— ...
View
Full Document
 Spring '07
 KOPP

Click to edit the document details