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Section 5.6 pg 5

Section 5.6 pg 5 - Semen 5J5 http:ffwww.webaeslg n.het.l'1...

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Unformatted text preview: Semen 5J5 http:ffwww.webaeslg n.het..l'1. A racket accelerates by bun-ling its unheard fuel, sa its mass decreases with time. Suppose the inlttal mass at the rocket at litteft {intending its fuel] Is at, the fuel is eansumed at rate r, and the exhaust gases are ejected wlth mnstant velaelty VI! {relative tn the recital}. A model fer the veiaelty at the racket at time tis given by the equatlen helew where g is the aeeeteratlan due ta gravity and t Is net tea large. ui=t=—e—em(u) m If g = 9.5 W52, :11 = 3mm kg, r = 1m kgis, and V! = sum mis, find the helght at the racket ehe minute after Ilflu'l'l'. 55354633193 1?1T4 I11 5 at 5 misuse me PM ...
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