In an aerial puhotogrammetric survey, if the exposure interval is 20 seconds to cover ground distance of 1000 m between exposures, what would be the ground speed of the aircraft ?
A. 90 km/hour B. 120 km/hour C. 150 km/hour D. 180 km/hour
Answers
Answered by
2
it is 1000 m / 20 sec = 50 m/sec = 50 * 3600 / 1000 Kmph = 180 kmph
Similar questions