You jump out of an airplane. Before your parachute opens you fall faster and faster, but
Chapter 0, Problem 7(choose chapter or problem)
You jump out of an airplane. Before your parachute opens you fall faster and faster, but your acceleration decreases as you fall because of air resistance. The table gives your acceleration, a (in m/sec2), after t seconds. t 0 1 2 3 4 5 a 9.81 8.03 6.53 5.38 4.41 3.61 (a) Give upper and lower estimates of your speed at t = 5. (b) Get a new estimate by taking the average of your upper and lower estimates. What does the concavity of the graph of acceleration tell you about your new estimate?
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