A camera postioned 400 ft from the base of a skyscraper, is filming the progress as a
daredevil attempts to scale the wall of a skyscraper. The climber is moving up vertically at a rate of 16 ft/min. What is the rate of change of the camera angle when the climber is 300 ft up the building?
•16/625 rads / min
•1/625 rads / min
•1/320 rads / min
•3/5 rads / min