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Rates of Change

An actor stands 2m in front of a spotlight that is dropping above the ground. The actor is 1.6m tall. The length of his shadow on the ground is increasing at a constant rate of 0.8 m/s. Find the speed at which the spotlight is dropping when the spotlight is 4 m above the ground, assuming the actor stays in the same position.

Posted in Calculus, asked by Sam, 2 years ago. 537 hits.
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