Q: A Navy captain going away from a lighthouse at the speed of 4[(73) – McqOptions

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1.	Q: A Navy captain going away from a lighthouse at the speed of 4[(73) -1] m/s. He observes that it takes him 1 minute to change the angle of elevation of the top of the lighthouse from 60 ° to 45 °. What is the height (in meters) of the lighthouse?
A.	360√3
B.	280√2
C.	240√3
D.	480[(√3)-1]
Answer» D. 480[(√3)-1]

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