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 Document
Unformatted text preview: Physics 2211 Quiz #1 Form #111 Name, Sledr Haas ____._——. Spring 200? Select a seat with a RED Ir Print your name, test form number [3 digits at the top of this form}, and student number {El digit Georgia Tech ID
number} in the section of the answer card labeled “Student Identiﬁcation.“ I Bubble the Test Form Number in columns 1—3, skip column 4, then bubble your Student Number in columns 5—13. I Fraseresponse questions are numbered I—III. For each, make no marks and leave no space on you: card. Show all your
work clearly, including all steps and logic. Box your answer. I Multiplechoice questions are numbered 1—6. For each, select the answer most nearly correct, circle this answer on
your test, and bubble it on your answer card. Do not put an}r extra marks on the card. II Turn in your test and ensure1' card as you leave. Your score will be posted under “Cour'ae Standing“ when it has been
graded. Quiz grades become final when the next quiz is given. i 1t"ou Ina}.r use a. calculator that cannot store letters, but no other aids. glamsh = 93 mills:
Unless othenvise directed, friction, drag, and gravity should be neglected. I. (16 points) A ball rolls along the frictionless track, as
shown. The hall is pictured at the origin, moving to the
right with a positive velocity sufﬁcient. to reach the end of the track. Each segment of the track is straight, and
the hall passes srl'unEIIthlj.r from one segment. to the next. [Ilraur graphs of position, T.I'elocitjr, and acceleration along
the track as a function of time, from a time of zero [pic
tured] until the hall reaches the end the track. Each graph
should have the same time axis. Proportions within each
graph should be correct. Label any graph segments whose
shape isn‘t obvious. [On Earth, do not neg‘ieot gravity] I“ ragagr tea14¢: H‘l! windy
arcidl £1;I+.. s
s
i Form #111 Page 1 of 5 II. {15 points] A Martian rolls a ball along a level surface. The ball then rolls dawn 2.0m along a slope than
makes an angle 1? 1with the vertical. It requires [1.3113 to make the descent, and is travelling at 3.1] mfs when
it reaches the bottom. What is the acceleration of the hall along the tree]: as it descends? [On Mars, do not
neglect gratuity.) Coredan} flarj'pm m. 3:12: )ﬁf IVt; at 4 eeﬁﬁfll er= entan
est V.’ m as ﬁt: a?“
$55 30m
fifélri’? VI. x; 2 +2.15“. if; = MelaninH Ur: Vpr duh“ 51"; at low}? 141:)” g(Vaﬁd'tlﬂf +§ﬁr6ﬂ$2
LEEVO
M: U; thaﬁtlﬂgeﬁhﬂt = tease ﬁehtll ,1
2 HM": V; as an: r :1 I w,» Marri 3m}?
6:: arm; es are} : (34: {K : MAW/3°?
(as? @ssgjl l. {6 points] Once the ameleratiun. Lt, Elf the ball is found, haw could the mleratiﬂn of gravity" Uﬂ Illllama1 gm“,
be determined? (a) sum = maﬁa
(13} 9a.“. = a! 31“ 9
{e} gm“ = asinl‘ir
II d1— Fbrrn #111 Page 2 of5 III. {115 points) A. outofservioe MARIA train is travelling with velocity magmtude 1.1,, to the north on straight
and level track. As it passes through Arts lCenter Station, the driver is warned of a stalled train ahead, and
so applies the hral'res1 slowing to a stop with acceleration magnitude an. After stopping, the driver moves to
the other end of the train and starts the train moving south with aooeleration magnitude or What is the
speed of the train as it passes back through Arts Center Station heading south, in terms of any or all of It.“
a... a... and physical or mathematical oonstants? Hr} an a. Empaf
(pushy1+ Arrflgra Phil l g :3, neell:
ages, HﬁQtél Hertil? +'—————————)y
life#1 Vi i‘ ‘(Aﬁi
Jrlrm’lﬁ AfarH ‘. Kg . anuwr llem'ld, gael'la' VI? =0
VF " a if = ”ukuiuu
alel saggy» ”It" : in. leis hxr.w._~,r,r v; as
vgra W: e some»
ﬁlmingl: h‘l‘ 67¢ 1"3'... Flammek a? ‘l I 5f;
{H 1= IIIelem... ﬂteuulfﬂﬁuH
ail£1 H at: El
a, '35
V—F'  1 v_vr If—ul'z
m( were} miehws) 1
11"} ex = 9W”! ' 3W1 J ”E' Wﬂ'c' Wr! is: his aﬂoat few“ we" 4w; H’r = ”L1. If} I VIIFf! = 9"" v,‘ . sit0‘
”V1 “F?
d?” " ell HMJ :1 or? : .——
 aﬁh ’1 Fl. {I I 9'4: 2. [6 points} Consider the position vs. time, velocity vs. time, and acceleration vs. time graphs of the train‘s
motion from the time it passes though Arts Center Station heading north, to the time it passes hack though
heading south. Let the origin he at Arts Center Station and north he the positive direction. Which graphs,
if any, have a positive and negative areas under the curve with equal magnitude? {a} None of the three graphs. 11“" ‘4‘”’_‘F ““3"“!
{h} The position vs. time graph. prelima, 'D’Sﬂ'éi'ﬂ'mmd" or
{e} The aeeelerat'lon vs. time graph. a re: 1: I velarl7 lﬂﬂL’. {d} The velocit vs. time ; Bull]. and the aeoeletation vs. time graph. h
{e W 6 W Form #111 Page 3 of 5 3. {11:1 points} Let 5": 2h 1?. If pi} : ﬁ, How is C‘ necessarily related to pi and 1§tr
ﬂJlClhlAl'l'lﬁl IIIEll: lgl'hl'lil ”:1 1a.,tﬁ4f 3 Il
12'1 M“!— ﬂ': rt 1111139111119: 14
E rill GIFHW qrﬂnﬁrmﬂrh 4"“! §¢mrwhffl Eelwen... 4. [ll] points} A motion diagram is illustrated, with E coordinate 5331:3111. What are the signs DI the velocity
11.1113 acceleration of the object? {a} 1I.Fel1:;~1::ity' 15 positive acceleration 13 positive 6 5 4 3 2 1 lb} Velocity is negative. acceleration 15 pasit1ve.I I I I I I
(1:) Velacity 13 negative aeeeleratien 1.5 negetwive l ‘71.
[d]: Velocity 15 positive aeeeleratien' 15 negative. 0 X Marni, 1&1 neguh? duel1911i. ($09]! lu‘ eel(El); lrmPﬁrIunT let! {iiIa, 1":55’
ﬂﬂﬂnr'l‘wl’ rm”! on; ma” P55151519, 523?}. Form #111 Page 4 are": 5. [1] points] Consider the two vectors 11' and 3 shown at right. Which of
the following is the correct sketch for the vector difference .5:  E? I3. {III} points} he a space shuttle burns up its fuel after takeoff. it gets lighter and lighter and its acceleration
gets larger and larger. Between the moment. it takes off and the time at which it has consumed nearly all of its fuel. is it possible to determine how its average speed compares to half its ﬁnal speed? (Hint: You may
want to consider a velocitg.r vs. time graph.) {Do not neglect gravity.) "'I'es1 its average speed is less than half its ﬁnal speed.
{hj No, it is not possible to determine t e re ationship from the information provided.
{c} Yes. its average speed is the same as half its ﬁnal speed.
{d} Yes. its average speed is greater than half its ﬁnal speed. Tl: thl'l‘n‘l’ 6.er grew Shuttle ._ “Eta“ ﬂaxgﬂl
g V: a“: ﬁll: '— 34 ll“
”J
._ ., ._ I.
ﬁx V’ﬁvf 1! t: if: Form #111P'age 5 of 5 ...
View
Full Document
 Spring '08
 UZER

Click to edit the document details