14. If a baby is dropped from a height of 300 meters, its height s at time t is given by s(t) = -4.91² + 300 where s is measured in meters and t is measured in seconds. a. Find the average rate of change on the interval [0,2] seconds. b. Find the instantaneous speed at 4 seconds.

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A: We can find the exact answer as below.

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A: We will find the derivative using Chain rule.

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