Mathematics, 20.06.2020 17:57, jonjosef2012

A lighthouse is located on a small island 2 km away from the nearest point P on a straight shoreline and its light makes 9 revolutions per minute. How fast is the beam of light moving along the shoreline when it is 1 km from P ? (Round your answer to one decimal place.)

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A lighthouse is located on a small island 2 km away from the nearest point P on a straight shoreline...