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April 19, 2015

Homework Help: Pre -calculus

Posted by H on Sunday, December 5, 2010 at 5:36pm.

An observer 2 km from the launching pad observes a vertically ascending missile at an angle of elevation of 21 degrees. 5 seconds later the nagle has increased to 35 degrees. What was its average speed during this interval? If it keeps going vertically at the same average speed, what will its angle of elevation be 15 seconds after the first sighting?

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