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 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 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 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 DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: 1. Two vectors A and B are added together to form a vector C. The relationship between
the magnitudes of the vectors is given by A + B = C. Which one of the following
statements concerning these vectors is true? A) A and B must be displacements. B) A and B must have equal lengths. C) A and B must point in opposite directions.
D) A and B must point in the same direction. E) A and B must be at right angles to each other. 2. Three vectors A, B, and C have the following x and )2 components:
Ax: l m,Ay=0m,Bx= l m,By= l m, Cx=0m, Cy=~l m
According to the graph, how are A, B, and C combined to result in the vector D?
y A)D=A—BC
B)D=AB+C
C) D=A+BC
D)D=A+B+C
m D=—A+B+C 3. A car starts from rest and accelerates at a constant rate in a straight line. In the ﬁrst
second the car covers a distance of 2.0 meters. How fast will the car be moving at the
end of the second second? A) 4.0 m/s
B) 16 m/s
C) 2.0 m/s
D) 32 m/s 1—7\ gnm/o
1.4} .U 111/0 Use the following to answer question 4: A projectile is ﬁred at an angle of 600° above the horizontal with an initial speed of 30.0 m/s. Page 1 4. How long does it take the projectile to reach the highest point in its trajectory?
A) 1.5 s
B) 2.7 s
C) 4.0 s
D) 6.2 s
E) 9.8 s 5. A ball is thrown vertically upward from the surface of the earth. Consider the following
quantities:
(1) the speed of the ball; (2) the velocity of the ball; (3) the acceleration of the
ball.
Which of these is (are) zero when the ball has reached the maximum height?
A) l and 2 only
B) 1 and 3 only
C) 1 only
D) 2 only
E) 1, 2, and 3 6. Elijah throws a tennis ball vertically upward. The ball returns to the point of release
after 3.5 s. What is the speed of the ball as it is released?
A) 0 m/s
B) 14 m/s
C) 17 m/s
D) 21 m/s
E) 34 m/s 7. A rock is dropped from rest from a height 11 above the ground. It falls and hits the
ground with a speed of 11 m/s. From what height should the rock be dropped so that its
speed on hitting the ground is 22 m/s? Neglect air resistance. A) 1.4h
B) 2.0h
C) 3.0h
D) 4%
E) 0.71/1 Page 2 QIASUJCK?
OK‘ 8. WES; 9. Starting from rest, a particle that is conﬁned to move along a straight line is accelerated
at a rate of 5.0 m/sz. Which statement concerning the slope of the position versus time
graph for this particle is true?
The slope has a constant value of 5. 0 m/s.
The slope has a constant value of 5. 0:57;?
The slope is both constant and negative.
D) The slope is not constant and increases with increasing time. B) The slope is not constant and decreases with increasing time. A motorcycle has a velocity of 15 m/s, due south as it passes a car with a velocity of 24
m/s, due north. What is the magnitude and direction of the velocity of the motorcycle as
seen by the driver of the car? A) 9 m/s, north B) 9 m/s, south C) 15 m/s, north D) 39 m/s, north E) 39 m/s, south Use the following to answer question 10: A man at point A directs his rowboat due north toward pointD “,5 straight across a river of width
100 m. The river current is due east The man starts across, rowing steadily at 0.75 m/s and
reaches the other side of the river at point C, 150 m downstream from his starting point. 3' 150m $0 10. What is the speed of the river? A) 0.38 m/s B) 0.67 m/s ““3’2’74‘” 1*
C) 1.1m M‘b ’ 0+ Decimai
D) 6.7m/s , a) E) 7.5m/s “'7” "MRS ’l +p§3 Page 3 Use the following to answer question 11: A football is kicked with a speed of 18 m/s at an angle of 65 ° to the horizontal. 11. How far does the football travel horizontally before it hits the ground?
A) 18 m
B) 25 m
C) 36 in
D) 48 m
E) 72 m Use the following to answer question 12: A tennis ball is thrown upward at an angle from point A. It follows a parabolic trajectory and hits
the ground at point D. At the instant shown, the ball is at point B. Point C represents the highest
position of the ball above the ground. C u gut p . 12. Which statement is true concerning the ball when it is at C, the highest point in its
trajectory?
A) The ball's velocity and acceleration are both zero.
B) The ball's velocity is perpendicular to its acceleration.
C) The ball's velocity is not zero, but its acceleration is zero.
D) The ball's velocity is zero, but its acceleration is not zero.
E) The horizontal and vertical components of the ball's velocity are equal. Use the following to answer question 13: A horse pulls a cart along a flat road. Consider the following four forces that arise in this
situation. (1) the force of the horse pulling on the cart (3) the force of the horse pushing on the road
(2) the force of the cart pulling on the horse (4) the force of the road pushing on the horse Page 4 l3. 14. 15. Which two forces form an "actionreaction" pair that obeys Newton's third law?
A) I and 4
B) I and 3
C) 2 and 4
D) 3 and 4
E) 2 and 3 A physics student standing on the edge of a cliff throws a stone vertically downward
with an initial speed of 10.0 rn/s. The instant before the stone hits the ground below, it
is traveling at a speed of 30.0 m/s. If the physics student were to throw the rock
horizontally outward from the cliff instead, with the same initial speed of 10.0 m/s, what
is the magnitude of the velocity of the stone just before it hits the ground? A) 10.0 m/s B) 20.0 m/s C) 30.0 m/s D) 40.0 m/s E) The height of the cliff must be speciﬁed to answer this question. The graph shows the velocities of two objects of equal mass as a function of time. Net
forces FA, F13, and PC acted on the objects during intervals A, B, and C, respectively.
Which one of th following choices is the correct relationship between the magnitudes
of the net forces? Velocity (in/:3) A) FB=Fc>FA
B) Fc>FB>FA
C) FA>FB=FC
D) FAZFB:FC
E) FA>FB>FC Page 5 Use the following to answer question 16: A 70.0—kg astronaut pushes to the left on a spacecraft with a force F in “gravityfree” space. The
spacecraft has a total mass of 1.0 X 104 kg. During the push, the astronaut accelerates to the right
with an acceleration of 0.36 rn/sz. 16. Determine the magnitude of the acceleration of the spacecraft.
A) 51.4 m/s2
B) 0.36 m/s2
C) 2.5 X 10“3 m/s2
D) 7.0 x 10—3 m/s2
E) 3.97 X 10“1 m/s2 Use the following to answer question 17:
A force P pulls on a crate of mass m that is in contact with a rough surface. The figure shows the
magnitudes and directions of the forces that act on the crate in this situation. W represents the weight of the crate. FN represents the normal force on the crate, and f represents the frictional
force. FN P = 160N
600 ‘W= 196N Page 6 l7. Which statement best describes the motion of the crate? A) The crate must be at rest. B) The crate must be moving with constant velocity. C) The crate must be moving with constant acceleration. D) The crate may be either at rest or moving with constant velocity. E) The crate may be either at rest or moving with constant acceleration. Use the following to answer question 18: A 10—kg block is connected to a 40kg block as shown in the ﬁgure. The surface on that the
blocks slide is frictionless. A force of 50 N pulls the blocks to the right. 18. 20. What is the magnitude of the tension T in the rope that connects the two blocks?
A) 0 N B) 10 N C) 20 N D) 40 N E) 50 N . A 71kg man stands on a bathroom scale in an elevator. What does the scale read if the elevator is ascending with an acceleration of 3.0 m/sz?
A) 140 N B) 480 N C) 690 N D) 830 N E) 910 N 3003 N At a playground, a child slides down a slide that makes a 42° angle with the horizontal
direction. The coefﬁcient of kinetic friction for the child sliding on the slide is 0.20.
What is the magnitude of her acceleration during her sliding? A) 4.6 m/s2 B) 5.1 m/s2 C) 5.4 rn/s2 D) 6.3 m/s2 E) 9.8 m/s2 Page 7 Answer Key CUNUJUOOOUWCUOFUUUO>CUWOU [\Jr—ahdH‘y—ar—dr—Awy—Ar—tr—A
FDEOPOFIFmShPP’Nt‘QWPONQM§>PJNH Page 8 MUS): 0. C ‘93 ”\fC’LS): OK’ZS3 “= '2.. “UV113.3%? +<~xce cu: Ru; ”.7 (5'5" 36>?er Gd: am} 041 4316'} ﬁnd—erred,
‘34 M seem was): qwszhs): 8MB AnSwm E ‘/
M7:q M—
N! A ,. ,, , ram)!
. mi: ”30“" I
( A S
H\ ‘1'% rm 6: 600 h
e .
MIN: \W‘Cosg ﬁrmly/19
#90on
W
M6: 45;wa $4]. it
A)‘
CUT +0? 0.: Shaht Arr.0
 ~> t 2: 2’54... 3 +IM€ +0 (“Each
hem‘y‘ L
J h " ”U" S
0 3'" e; (30 “4/5) 5M 69°
2 2 .. C
3 '8 M/sz ' ' E? ‘v‘
YMSuE/L B V” 5) AT mylmum Hech+ 1% Mle M0m9n+arlLy Gus uA Kc 1* ... 
S 7 ’U'=ve(o¢uy Ve¢+W=o [131175 spieJ=o ‘ “ASHER
1. "
552.. are Eelo, 3L5 VLo+2e'f‘O—‘> (4/ l
O: (m‘33£C)6c £0: 0 (Ban was (A L”: “M04
ad 6:0)
02. 34
4J3, lg£cgo «757:. (8.”: (QBM/S‘XZXS) 2. “TN “4/3 (A : ill; M/S HN$LJEIL M (1/ 1'}? 11' ”(‘5 ‘f I /‘ ”a v u... m) L  k: LL‘ w " w
v n; ”UT: H Wig —‘> $60.3 8\ We PaiHUQ 1S MOVMca, (.AH'H/L q Congmmt, Past—Nye QCCQ‘eW—odctdv. m +k¢ 4.x doﬂ€C+IOﬂ——§ x06) TVS. t grQVK {s q 'pawodacﬁq (Spent/1} UVMO'V/‘d, 'quS‘Ao‘ +(4foug/(1 {k9 MtquI/l (AHHA 33 A 4);“: veiowy 04 CAR. Relodwe
A
we“ +0 foLomad
4?
A V Mc‘ '~ (UUocwx/ 04: M0+oﬂcycle
’U‘mq RQLCK'HJE 4—0 QROUAM
9M, A“? ..
mac. '2 Vdogm/ op Mo+orz
CYCLE RELATIVE 4.0
CAR
—..\
s: —A
M T ’U +’\)" “A
% Me Cq 47d «rm —=.~>
___\ §
/\_M r (\T A“ i ’6‘—
,» ””‘PT‘\
/,’ Y9 \
M «22> ’b— OwnX g me PenPeAchcuLargv ﬁnSwts/L B V" N :3) 4”?" [vs REACTIGM‘. Cnnr POLLS 734cm 0N HoraSE (7) ACTIOn: GMT Falls on HOW—95 tP—EAcTrdH‘. H0295: POLLS on GM” (3) WCTIOV‘; HOW—$5” PUSf/ES Ow fad/413
{lg/Parana ; 120m) PvSAes 0M HMSQ.
04‘: ﬁCTvmq (Lo/+0 PuSHES cw HUI/LEE [BEACT’W‘i Hausa 7>uS/1Eso~3349 \
CH 8‘ (2) W Am AC'TTcM» REACTTOK ng \
(3)3304) WC M Amw~l7f34crw Pﬂwrz => D (259) M Haﬁ‘cém‘ﬁé Srcme: ;: ,
“NA ¥ ”Quit/4y (4+ Imp/44+ a) «fit "" O + i (4 . .. ”A .:
‘7 t 3 ’Uz¥~ 34L
q’gy‘fo ‘ \ a. ”c M
“Eat$9951" \1 2(3ewg1xqa 3'6“) ... 28‘ $097.35
5N
W \ ’VI'HPACI": ‘ (10 "/§)2+(‘18.22q7,,§>1 lg ""
3 ”‘e 81°96: OF A Vdomh/ V$= T‘MQ 31’0“?” 3S The aCcekrod—wm, ‘By New—Ford“ Ink (MN same A > SLQPE a: SLOPE 6. Fa ‘7 F3: F: :“> rimswesa <2. /
Wm M
ﬁn a Force 041 gamma”
(6‘) EH UM MMdnoLuggf.
————>
’T‘ﬂ
QM”, EA: ”mansL: 70*} (omW32)
a} Fm: 25.2.“! N W v eaﬁ 1. 13“ch "(s71
“1221*, W09 (M
F
n, 3:. Firms at: ﬁ$TVoM
“91‘4” M M 05:20.0023‘2
SPACQCI’QH c .... E4 ‘3Y ch+m‘5 704w}. mg: 3‘4 Law 5":Q30N e=eo°
w: \36AI ’7'“: “fl
”P: MON EyMIM O—eceferovhov‘ (A Ocdmeul—‘mW ~ ‘3— .3M/ 2.
CV» E EPCOSS‘ﬁgl = 3 s LIGONCoS 60° 8014]
60A} 0 
X~ O Stowe Pcos®~¥fo :7 N2) ~e+ mce m: X ea y daredcm .::7 WC) OLCCef'9r0ul"d\/l M X W x dL/‘ep’l’ﬁm :7 Cum (,3 W» mace4” cw Sum/Lg 01"“ Q Coszb wl’ocwy 5/ mum's Fmsr‘cﬂw P ”Suﬁé’ﬂ— A / H"!
W l8\ ”’3’ 0* Foﬂ $50114 ﬁLouc—s wgeJrM/vz. Mm+oW5 1“°kL—0W==‘7 ————»;: F‘s—.(mHMJW F « E U" "‘ )II
N“... fry. (3+ il‘ :1 o... F '~’ I  8N ‘N g N aagswevl ﬁ \/ WW. (:3 n A. Ff".
". l 1‘9”] LI
”7 ﬁg. —" l (e 9 q d‘E‘JSQ g v‘v' Ir
1 ‘, v ’ l I W {9&9
Ow: %—$M8 vﬂh'f C n.
m
— 3" an /K,KQU J
OK.— ES 6 ates H2“ :. 5’40 mlsz
CC.“ ‘Mawsﬂﬁqum 0.2 ﬁnswsa B v/ ...
View
Full Document
 Spring '08
 unknown
 mechanics

Click to edit the document details