Question

a lighthouse is located on a small island 5 km away from the nearest point p on a straight shoreline and its light makes eight 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.)

Answer 1

80pi/3

Step-by-step explanation:

Use Pythagorean theorem 83.78 km/min