EBK PHYSICS FUNDAMENTALS
EBK PHYSICS FUNDAMENTALS
2nd Edition
ISBN: 9780100265493
Author: Coletta
Publisher: YUZU
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Chapter 2, Problem 53P
To determine

To Compute: The acceleration of the hand.

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A paratrooper is initially falling downward at a speed of 27.6 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 71 m/s2. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 4.55 m/s? (Actually the acceleration is not constant in this case, but the equations of constant acceleration provide an easy estimate.)(b) How far does the paratrooper fall during this time interval?
A paratrooper is initially falling downward at a speed of 30.6 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 82 m/s2. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 4.65 m/s? (Actually the acceleration is not constant in this case, but the equations of constant acceleration provide an easy estimate.)   (b) How far does he fall in this time
Most important in an investigation of an airplane crash by the U.S. National Transportation Safety Board is the data stored on the airplane’s flight-data recorder, commonly called the “black box” in spite of its orange coloring and reflective tape.The recorder is engineered to withstand a crash with an average deceleration of magnitude 3450 g during a time interval of 6.49 ms. In such a crash, if the recorder and airplane have zero speed at the end of that time interval, what is their speed at the beginning of the interval?
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Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY