A local camera station is tracking a UFO sighting in the evening sky, Find the velocity and acceleration of the UFO in the r and theta directions and then find the velocity and acceleration in the x and y directions. 30 -.043[rad/sec] +.004308 [rad/scc] 6000 [A] 283 [f/sec] 12.011 [f/sec'] e (theta dot) Y axis r X axis

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Instruments for Surveying

Surveying is the practice that determines the relative three-dimensional positions of many different points on the earth’s surface. There are various instruments used in Surveying like Theodolites, Total station, Tripod stands, Plane table, etc. for measuring horizontal angle, vertical and sloping angle, which are very useful for giving accurate and precise measurement.