Question
A man of height 1.9 meters walks away from a 5-meter lamppost at a speed of 1.1 m/s. Find the rate at which his shadow is
increasing in length.
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A man of height 1.9 meters walks away from a 5-meter lamppost at a speed of 1.1 m/s. Find the rate at which his shadow is increasing in length.

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Calculus

Derivative

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