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Mathematics 15 Online
OpenStudy (anonymous):

Coughing forces the trachea (windpipe) to contract, which in turn affects the velocity of the air through the trachea. The velocity of the air during coughing can be modeled by v = k(R – r)r2, 0 ≤ r < R, where k is a constant, R is the normal radius of the trachea, and r is the radius during coughing. What radius r will produce the maximum air velocity?

OpenStudy (anonymous):

anyone know how to solve this? I'm really stuck

OpenStudy (bahrom7893):

Just find the max of velocity

OpenStudy (bahrom7893):

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