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March 28, 2015

Homework Help: calculus

Posted by soffy on Monday, June 11, 2012 at 10:00am.

A police cruiser hunting for a suspect pulls over and stops at a point 10 ft from a straight wall.
The flasher on top of the cruiser revolves at a constant rate of 75 /second, and the light beam casts a spot of light as it strikes the wall.
How fast is the spot of light moving along the wall at a point 50 ft from the point on the wall closest to the cruiser?

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