A television camera at ground level is filming the lift-off of a space shuttle at a point 750 meters from the launch pad. Let @ be the angle of elevation of the shuttle and let s be the distance between the camera and the shuttle (see figure). Write as a function of s for the period of time when the shuttle is moving vertically. Differentiate the result to find de/ dt in terms of s and ds / dt. de/dt = 750 s(3²-750²) ( ) 750 8 (8²-7502) Servant ds/dt

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