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Unformatted text preview: a) eccentricity vector b) true anomaly at this instant 3. Relative to a nonrotating, earthcentered Cartesian coordinate system, the velocity of a spacecraft is k j i v 3 . 1 9 2 . 8 (km/s) and the unit vector in the direction of the radius is k j i u r 87 . 09667 . 4835 . . Calculate: a) the radial component of velocity v r b) the azimuth component of velocity v c) the flight path angle 4. Relative to a nonrotating, Cartesian coordinate frame with origin at the center of the earth, a spacecraft has the position and velocity vectors k j i r 15000 5000 10000 (km) and k j i v 5 . 7 5 . 2 5 (km/s). Calculate: a) the angular momentum. What statement can be made about the type of motion? b) the unit normal in the radial direction c) the position vector when the speed is 7 km/s (hint: use the energy equation)...
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 Spring '08
 Mazzoleni,A

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