Ex3_F01 - KW Net-“ember 15 EDUI Physics 220 — Exam #3...

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Unformatted text preview: KW Net-“ember 15 EDUI Physics 220 — Exam #3 This exam miJEiEtE ef 12 preblems en ’5' pages. Please cheek that 3-1111 have them all. All of the formulas that you will nee-:1 are git-en belmr. “mu may 3.15:. 113.2; a mummy. SiflE=1lfllrt fifififlszr talle=yfm r 1.. average speed = W E = Ell-E mfg? avenge W—flfltfity = fi' = 4‘ x instentsneeus trelenzitg.r = slepe sf pesitien versus time instantsnesus semlm'stien = slaps sf velecity versus time For eenstsnt seeelerstien'. s = 3.3. + 1.1:"! + fist2 t' = flu :— at e3 = t-fi +2ufs—JID] F‘ = me 3:13;“ = sgleststie friction] FIN-mm = nytslidingffiet-ien} Jami-w = G = fifl'fi's lfll‘“ ngfkgl at = ezf-r' RE = Eire-1."a W=Fc£ eesfl' PEgmfly = my}; pusher : werltfflt f3" = we? zip = impulse z Fflt me = —t:r. I’Emm = its? 3 =As§i.t:[e.:t} t = .dweeefwt] w: Mm er: W'L w=23rf f=1fT EH mustard: angular meteretien: E=Eu+srut+fist3 w=e=n+et w3=w§+2nfifl—fluj lthfwgffl L=Iw T=Icr 5:313?“ w=ufs ceszF'r w=flft Pressure = Fereefst‘ee Aim = rig-e3 PI +pfl1'il +m$ffl = :5 +93% +93%? ArnE-imeies prineiple: buoyant feree = weight of fluid dispisned 1- A reoord of diameter 0-12 m is initially at rest. The tee-uni player is then turned on and the reeerd eeoeleretee LuiiFoI'mlj.r to an angular speed of 3.5- rfldiflJJS'a'l5. II' the record make 5.5 revolutioiie during this timeJ find the angular acceleration of the record- [o} 1.1 Haifa? L bet-shade WE: ND .4! 2 mi {‘3‘ {:3 meme? ,1, my me megs? D l 2' [a 9%: a: Mme at my. ,~F#_._,_._.— 2. it epheIe of meee 3.5 kg rolls without slipping down at rem]:- of height 0.9? m as shown below. Find the speed of the sphere when it reeohvfi the bottom of the temp. Ignore eir drag. The moment of inertial of e Sphere ie Emflaffi. r 119an kg (3.] 13 me mam—H {h} 433 mfe [ejl 3211135 _ -. _ .1; PE; {d} 0-29 1111’s iiEfi PE; " riff e ,Lr- 1+ “*3 Lia - . L -iee5:g3,'f_tiwig. I w 1 ‘3‘ “‘re—WFL'F'ehfl‘J‘ G i“ ‘1‘ ,» Lt T .5, I 1 Lib/teat , .L WflrfprP-EIWF' ‘* Waikiki-r w.— Egfilfliflfll] , 1 eL M - eje: *1 :3 HU- ‘IT; “F” «P 1 Q —- -I. 3. A. pel'tiele attached Le a. Spring with aprlng eenetent £3 = 125 me is undergoing simple harmonic metien, and its peeitien is given by the equatien e: : l.?eee|:2a1t]|. Find the peried ef the met-ital]. tailed: X: Awiw'fi-J {h} Gil-'12 e [ell H.333 a T {:1} Le e 3""? . 2w 3"? : em 4. A baseball is hit with an initial speed of 35 mfe at an angle of 5,5” with reepeet te the [herieentel] greund. Hew far from heme plate deee the hall land? Ignore air drag, and assume that the ball starts; at gmnnrl level- E. A bleak of mass 4.4 kg is [imp-pad [rem a height of 3.3 In ante s. spa-i mg that is initiallyr at rest [itsP unstretehed sud uncompressed}. When the tiles}: lands an the spring, the sfiring is mmpressed an fllflfllllit- 115-2 m befere Deming nmmenteriiy tn rest. Find the spring are nt it ef the spring. ' re {a} $80 N [h] 251] mm {:3 see mm 33'“ . is sewn: é ..——-—'_'_-—' ,I/r’fr’lf {If}!!! IggA-FPE ” {5ng FE? L L +ikfi. L L I“ Ahlht : alt—meg”; PPM; .F ".F (ERIE!) Hi.- rd" t" “j It+ L T 1- law-j "‘ fiflgjatqr‘t 1 3‘“ fl, 1 '3" _ I.“ L I: {:K' 1 “stir 34“ 1 i“ 4’ = seat/e '5. Test best [timid has at powerful haw {for archery]- The haw-string emnbinatjnn as a. spring with Spril‘ng censtsht J}: = «iflfl me. You have an srrew ef mess [1.15 kg. If yet: want ts sheet the: snow with a speed of 55 mars: threugh what distance must you pull back the bew string? 1‘. JAR: 1 {sJDfl-ttlm 1 .m_ Arr-rm" 4' 3 qt" Eb) fllfigm J— — 1- "IF ?1 (its Lam f .- e {d} ass in D [e} £125 in 1'. fl. pal-sum 0E lsngth 125 m and mass .55 kg sits st rsst an two suppsrts as shown hsls-w. The mass of the is distributed unifummr. Find thus [GI-cs [If the right suppflrt sun the: Tank. P ‘63: 3., ‘15 m : t3 2 24 F“ 1.1 W 1: "40h _ L F; Lissa if: c; 2 “Fuji! fig“ ‘1‘ ’1 L2“ is] sssrs if) M; {sJETflN i??g#3lfflj{:.£fl§ a: fit ,FH-F 1 H Isis“ M .— 315rnl-wl" :F Ll fl 3- A has. of volume 4.3 m3 is Easting in st Isl-ts. TEES] 0f the 1mm: is under water. Find the massiths bs-x. [plum = 111110 kgfmfij - EB. 11 hue ie traveling at 12 mfe dawn a hill when the brakes are applied end all feur wheels leek. The hill is en inclined plane that meltee an angle et' 1’?” with the lmrieflntel. The eeeffieient ef friction hetween the tires and the reed ie [LEI]. Hew tar deee the hue skid hefere earning be e etep? tall?“- -- frk ' k cl {e} 52 m [13} 93 In “El 1E3. A11 airplane wian :ie deeigned te eperate with an air speed e!‘ Silt] mfg ever the tep of the wing and E25 mfe aereee the hettem. If the lift Eeree en the wing is 5-5 but I'll" N, find the area of the wing. [Helpful hint: 30“. may ignore the thine-knees of the wing] _ _ . _ E [em—1.3 kg;m3,1:;m_1.ex1e ea} 3 Iggy; are, H E- 2 3 [$361113 HF; L tweed m2 P; 470 3 ’ 1'“ u 22 m2 Pm___l_ .._._~—P—"' {d} 41 m5 I"l1 If} LIL hellfl'fmE FFL?H?L-)flr:g " _l' Lgmrltj/Cl" ,1 in“; J 3* bf {egg-ah”; L t zgth?‘ 1.— elf: egg" - - 3'41“? ml 'F L}: #lxfil“ ' L 11. The water pressure in the pipes in Eur heuEE ie 3.5 it Hit“ Pa. When you epeu e. faucet, whet is the speed eF the water when it sprays eut'?‘ Assume Liiet tiae epening ef the faucet is very smell. [puma = lflflfl kgfmfi; Fair =13 kgfmai Pm“ G Li] H 10-5 Fe] 13-11113“ fit Ed) eame T l T g ! NF 2 Eel eemft g‘gmfl; It; ham FF :3: h JI-h wig:- Sf’r'ufiu} Rh: :' l; fare: 1‘3. Yeur jet: is te design a pendulum eleek using e simple pendulum {Len s, mass tied tn 3-. fitting}. The angels! frequency ef a simple pendulum is w = fiigfL where L is the length ef the pendulum- ‘I'eu went yeur elect: te make ens “tieh” {one eerie-d} ever}r it] s. Find the value ef L that is required. fa} 0-65 m (bjsem L 1’11“ e um *' e {e} 6.2m fl @fi; J‘ 3-" “Hall-'1. F}: L 9 ft e? (53‘; L. :— E“' a“? f The End ...
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Ex3_F01 - KW Net-“ember 15 EDUI Physics 220 — Exam #3...

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