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12 A paratrooper is initially falling downward at a speed of 30.0 m/s before her parachute opens. When it opens, she experiences an upward instantaneous ac- celeration of 75.0 m/s?. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.00 m/s? (Actually the accelera- tion 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?

12 A paratrooper is initially falling downward at a speed of 30.0 m/s before her parachute opens. When it opens, she experiences an upward instantaneous ac- celeration of 75.0 m/s?. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.00 m/s? (Actually the accelera- tion 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?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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12 A paratrooper is initially falling downward at a speed of 30.0 m/s before her parachute opens. When it opens, she experiences an upward instantaneous ac- celeration of 75.0 m/s?. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.00 m/s? (Actually the accelera- tion 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?
Transcribed Image Text:12 A paratrooper is initially falling downward at a speed of 30.0 m/s before her parachute opens. When it opens, she experiences an upward instantaneous ac- celeration of 75.0 m/s?. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.00 m/s? (Actually the accelera- tion 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?
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