mae2323summer09test1

mae2323summer09test1 - 1. The lunar module descends to the...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

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

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

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

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1. The lunar module descends to the moon’s surface under retrothrust. At a height of 5 meters, it is traveling at 2 m/sec downward. At this point, the engines are cut off abruptly and the vehicle falls freely to the surface. If the lunar acceleration due to gravity is one sixth that of earth, determine the impact velocity at which the vehicle will land. A ': J— : (VOL! Q 66} air .§ v - fjfiaflala ; [Vow 0 Z mask) :: iii/V: 2;} Z— ahara?) 2 V -r L! V1: LIL—{— 2(3475‘) L: 20.3? V 1 4.9” [M/m] » _ 2. The collar A slides on a circular bar as shown. the radial position is given by r = 2 cos 9. At the instant shown, 6 = 25° and dB/dt = 4 rad/ sec and is constant. Determine the radial and transverse components of the velocity and acceleration of the collar in polar coordinates. y Ma r: 2co59_ Q»: —2$-¢'n96' .. z (1039 61-— ZSfi—ie 9. ‘3: H 0 \fr :3 2 SM 25: (4) I ‘= - 3.33: M/scc// V8: «'3 =' (ifiwmcll 3 725' M/S-E-e\ wéxammmofix OW: _ i; 4* r9 : ~‘Z‘?.o—— (LMQC‘PY '* Sguo M/gc: / H as 2: we +269 : 2(—3.ias-I)(4.)f” irmwmmmmfifixvxflmmmflwW-wmtfimfiqanngg v.1f,._fi\._ .a 3., A bead is sliding amund' a circular ring 4 m in diameter. At the instant shown: (9 == 30°). the tangenfiaai .' 4% WS% The is aiso increasing at this instant at a rate @153? = a 2” I ' 1° ‘ amflemfim$ fiewmine the mag' nitUde and d”? :1 w ‘a m’rfimeameflmafiwm Ware ask ShOUId be measured mm amfim mfidemfim .‘ ' <+ " - ' to the horizon. «mmmzmm‘swmmnmnm 2M”! :‘gfiflmafiéfig mmmmmmmmmmmnmsmummawmmmmmmmmmmammal 4. A golfer strikes a golf ball at an angle of 80 = 50° as shown. Determine the initial velocity of the ball necessary for it to land within 3 feet of the hole. _ omr 07‘ “9r " cit VY': \{Sr‘neg — Gift 2.— oh! OH: 1 g \f : Vosfvxga‘b — if-fit i - at): f ' : = 'l' : -—-— g V)‘ V0 (1059., Geoff‘s-4 (if a . 363i?) E )crveosgot:30i3 ¥+ “t3 E . . \/‘a use, l 3%: v a 30353] K 30:3 L T: .: Slh a 7“ ——‘ J" t Y - (vows). 2%“ M36059: E Eyr— K: E ._ me a.“ 3 2 same —— 423% VOM~ 34.Ié.{+/sq .vf For )4 2 £744 3 = make. -~ 2%)”? \A .3 3“ “Page V¢L mm ForXr—%O_Cf ‘ 3: BQ@Q W 2504! V « 32.7154; 5 a For the pulley arrangement shown, block C is moving upward at 4 m/sec while blockA is moving downward at 6 m/sec. Determine the magnitude and direction of the‘Velocity of block B. Sc + 256+ZSA If Vc+ Mail/(‘26 v5: “em-Va : flew-«>- 4 4 M m 4mm h_m___.___-"nu-nmemmnwmmt(19A\W‘A\Rafi.“\mxmmmmmvmli\\§mmnmm&g}mwa)rzmwwmfimmQ ...
View Full Document

This note was uploaded on 02/17/2011 for the course MAE 2323 taught by Professor B.p.wang during the Spring '08 term at UT Arlington.

Page1 / 5

mae2323summer09test1 - 1. The lunar module descends to the...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online