The distance, in feet, a stone drops in t seconds is given by d(t) = 16t2. The depth of a hole is to be approximated by dropping a rock and listening for it to hit the bottom. Assume that time measurement is accurate to 2/10th of a second. Use a linear approximation to estimate an upper bound for the propagated error if the measured time is: a) 2 seconds. b) 5 seconds. feet feet

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