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

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

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