EXAM - 5:54am 1 62(3) Conceptual Questions 1. ( 10) If a...

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Unformatted text preview: 5:54am 1 62(3) Conceptual Questions 1. ( 10) If a car is traveling north, can it have an acceleration toward the south? If so, under what circumstances? e‘ 2 I “M l t \_ I _.\ ’7“- it! 2 my,‘.s-t-..‘p\r A. \ yifié , fiéaji‘tvufi“ (159w It; l. ti 3 ‘5 has a“ 4‘ In f’MJ/M/ 3‘- if “x (l ,5. ( in J J 0 .e (3e, l aw” e > 2. (10) If the graph of the position of an object as a function of time is a straight line, what can you find out about the velocity of this object? Consider cases in which the slope is positive, negative, and zero. i,“ {Q S. It 3. (10) A passenger in a bus notices that a ball which has been at rest in the aisle suddenly starts to roll toward the front of the bus. What can the passenger conclude about the motion of the bus from this observation? 1/» f 0 “7749 g M f; <f""/’2<E‘ f “T; K3 «it c: [£— {221657. (lump . ,x' -- ! b 54 ‘3 i w \ t 5 l Hi N. R: ‘ «'M :i I V“ “’3 MW] ‘ t i t i w) 5. .- u :_ s JV: \, \ 3 L. \ J {.5317 4-1 ‘ M” A vs xi W h;uv"““ / / [ME 9 ‘1 <5 twig}. {Li'ig'stt/n {it A} (I, it 4. (10) For each graph of velocity as a function of time shown, sketch a qualitativemggaghwg‘fllgwwmmw acceleration as a function of time in the graphs below in figure. \\ \ I jl lfjli?) if?“ \i if i” _ saw-W“ “mam” "NW"mumxmwmywwmmmmx g 9' ‘ " it __ r“ . «I J. ‘AK f t u 1:; f (Lij H. “ \ :1 r 4‘ A Lie,» X " “4 h ‘ 5. (20) A home—run baseball is hit with an initial speed v0 = 37.0 m/s at an initial angle 6=53°i (a) Find the height when the ball is at its highest point assuming the ball to be hit from ground level. (‘0) Find the distance from the starting point to where the ball hits the ground (again, you may neglect the small distance above the ground that the ball is hit and consider the ball to be hit at ground level). a X : (:3 ,2. (1 V t w I”: fir ‘* ,um i. ,/ X I” >((:, "d" {ex mg“ . " a l we l Lac" 6 M i a? [M L <;* to [7L5 (4 6. (40) Two boxes are connected by alight string that passes over alight, frictionless pulley One box rests on a frictionless ramp that rises at 30.0° above the horizontal (see the figure below), and the system is released from rest. [m .3; '5; (:2 lurk. " "\ ,» “ Ha Cd, {0) x. w‘ ’( ' 0 “Am a: ax {—1 a, g; t ‘l J u s“ WK \lJH firm (:3 A? (a) Make a free body diagram for each box (b) Find the acceleration of each box. (c) Which way will the 30 kg box move? ((1) Find the tension in the string. “Rh—"ID Mi” Z. M was"! ix 4": J w gym 0 t *- j, 27 a” a M no? r lief?“ La: lit-("J .1, it .7313 (f M agar/'Lgffififi, ...
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This note was uploaded on 01/31/2009 for the course PHYS 102 taught by Professor Novordsky during the Spring '08 term at University of Arizona- Tucson.

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EXAM - 5:54am 1 62(3) Conceptual Questions 1. ( 10) If a...

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