Related Rates - Lighthouse

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A lighthouse is located on a small island 3 km away from the nearest point P on a straight shoreline and its light makes four revolutions per minute. How fast is the beam of light moving along the shoreline when it is 1 km from P?

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Jason Slowbe — 12 August 2012 - 7:08 am

Resource Type: Activity
Tags: relatedrates
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Target Group (Age): 15 – 18
Language: English (United Kingdom)

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Related Rates - Lighthouse

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