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[crcowell]

A police officer is standing 80 feet away from a long, straight fence when she notices a man running along it, getting closer to her. She points her flashlight at him and keeps it on him as he runs.
When the distance between her and the runner is 100 feet, he is running at 9 feet per second. At this moment, at what rate is she turning the flashlight to keep him illuminated? Include units in your answer.

 

[lev888]

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[Deleted member 4993]

A police officer is standing 80 feet away from a long, straight fence when she notices a man running along it, getting closer to her. She points her flashlight at him and keeps it on him as he runs.
When the distance between her and the runner is 100 feet, he is running at 9 feet per second. At this moment, at what rate is she turning the flashlight to keep him illuminated? Include units in your answer.

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Start with drawing a sketch for the problem. What is the relationship between the linear speed and angular speed of a particle?