269. A bomber plane, flying horizontally 3.2 km above the ground is sighting on at a target on the ground directly ahead. The angle between the line of sight and the pad of the plane is changing at the rate of 5/12 rad/min. When the angle is 30 degrees, what is the speed of the plane in mph? a. 200 b. 260 c. 220 d. 240

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