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I'm stuck on a Calculus Related Rates question. A rotating beacon is 5 miles out in the water. Point A is a point on the
I'm stuck on a Calculus Related Rates question.
A rotating beacon is 5 miles out in the water.
Point A is a point on the shore closest to the beacon.
The beacon rotates at 7 rev/min sweeping a beam of light down the shore each time.
How fast (in miles/min) is the point where the beam hits the shore moving at an instant when the beam is lighting up a point 5 miles along the shore from point A?
The answer is given as 439.82
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