{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Exam+1+--+Fall+2008+--+Blank - 1 Two vectors A and B are...

Info icon This preview shows pages 1–21. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 10
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
Image of page 13

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 14
Image of page 15

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 16
Image of page 17

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 18
Image of page 19

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 20
This is the end of the preview. Sign up to access the rest of the 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—B-C B)D=A-B+C C) D=A+B-C 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 "action-reaction" 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 “gravity-free” 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 40-kg 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 71-kg 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.. “UV-113.3%? +<~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- $4]. it A)‘ CUT +0? 0.: Shah-t Arr-.0 - ~> t 2: 2’54... 3 +IM€ +0 (“Each hem‘y‘ L J h "- ”U" S 0 3'" e; (30 “4/5) 5M 69° 2 2 .. C 3 '8 M/sz ' ' E? ‘v‘ YMSuE/L B V” 5) AT mylmum Hech+ 1% Mle M0m9n+arlLy Gus u-A Kc 1* ... - S 7 ’U'=ve(o¢uy Ve¢+W=o [1-3-1175 spieJ=o ‘ “ASHER 1. " 552.. are Eel-o, 3L5 VLo+2e'f‘O—‘-> (4/ l O: (m-‘33£C)6c £0: 0 (Ban was (A L”: “M04 ad 6:0) 02. 34 4J3, lg£cgo «757:. (8.”: (Q-BM/S‘XZXS) 2. “TN “4/3 (A : ill; M/S HN$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 Pai-HUQ 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 (AH-HA 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— Own-X g me PenPeAchcuLar-gv finSwt-s/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(3-ewg1xqa 3'6“) ... 28‘ $097.35 5N W \ ’VI'HPACI": ‘ (10 "/§)2+(‘18.22q7,,§>1 lg "" 3 ”‘e 81°96: OF A Vdom-h/ V$= 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 MMdnoLugg-f. ——-—-—> ’T‘fl QM”, EA: ”mans-L: 70*} (om-W32) 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—‘m-W ~ ‘3— .3M/ 2. CV» E EPCOSS‘figl = 3 s LIGONCoS 60°- 8014] 60A} 0 - X~ O Stow-e Pcos®~¥fo :7 N2) ~e+ mce m: X ea y dared-cm --.::-7 WC) OLCC-ef'9r0ul"d\/l M X W x dL/‘ep’l’fim :7 Cum (,3 W» mace-4” cw Sum/Lg 01"“ Q Coszb wl’ocwy 5/ mum's Fmsr‘cflw P ”Sufié’fl— A / H"! W l8\ ”’3’ 0* Fofl $50114 fiLouc—s wgeJrM/vz. Mm+oW5 1“°kL—0W-==-‘7 -———-—»;: F‘s—.(m-HMJW F «- E U" "‘ )II N“... fry. (3+ il‘ :1 o... F '~’ I - 8N ‘N g N aagswevl fi \/ WW. (:3 n A. Ff". ". l 1‘9”] LI ”7 fig. —" l (e 9 q d‘E‘JSQ g v‘v' Ir 1 ‘, v ’ l I W {9&9 Ow: %—$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

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern