## Question

###### Uppicctoic Iestance. Mnen nas rcuched height ol 525 m_ its engines suddenly fail; the only [oree acting on it is nOw gravity (a) What is the maximum height this rocket will reach above Ihc: Iauuneh Pad" (b) How much lime willl elapse after engine failure before the rocket comes crashing down hc 10 Ihe launch pad. and how last will it be moving just belore crashes? (c) Sketch a * v-and y-I graphs of the rocket' motion the [rOm Ihe instant ol blasl-Oll l0 the inslant just belore it slrik

uppicctoic Iestance. Mnen nas rcuched height ol 525 m_ its engines suddenly fail; the only [oree acting on it is nOw gravity (a) What is the maximum height this rocket will reach above Ihc: Iauuneh Pad" (b) How much lime willl elapse after engine failure before the rocket comes crashing down hc 10 Ihe launch pad. and how last will it be moving just belore crashes? (c) Sketch a * v-and y-I graphs of the rocket' motion the [rOm Ihe instant ol blasl-Oll l0 the inslant just belore it slrikes thc OM pad: 644 hol-uir balllvonist, ris- Figure E2.44 lial erlically with cunslani Vc- pi S.(X) m{s 5,00) mfs locity magnitude releuses sandbag a( ISUAnI Ig: when the balloon iS 40O m above 1nd the grvund (Fig: E2.44) Alter Ihe W/S_ sandbag released_ il IS in ftee ing? GlL Compule the position ad Athe velocity of the sandbag at (.250 and L.00 alter its releasc . (b) How many seconds after its release dues 'up - the ba? strike the ground? (c) With bove whal magnitude o velocily docs ; just it strike the ground? (d) What iS ition the greulest height aborc Ihe time ground that the sandbag reaches? 40,0 [ I0 groulld (c) Skelch &- Vy-I . und y-t gruphs aking for Ile motion_ cends 2.45 BlO The rockei-driven sled Sonic Wind No uscd for inc Is invesligating Ihe physiological etlects ol large accelerations; runs lown- straight. level track 1070 m (3500 ft) long: Starting from rest. frce it can rEach speed of 224 m/s(S(K) mi/h) in (.9(0 : (2) Coupute Kun thie ucceleration in I{s assumning that is constant: (b) What iS the ratio of this accclcration t0 that of [recly falling body (g1? What distance covered in (900 magazine article states that at the end of certain run thc spced of the sled de l eantamnalenan HHOS hud bal duruy