4. For this problem, try to use only energy considerations in your solution. You are asked to design a net for firefight- ers that will catch a 25 kg person jumping from the top of a 30-story building. a) What will the person's approximate speed be when hitting the net? b) How much kinetic energy will the net have to convert into other forms of energy? Note: 1 story = 3.3 m. %3D Inswers: a) 44.1 m/s b) 24 280 J

4. For this problem, try to use only energy considerations in your solution. You are asked to design a net for firefight- ers that will catch a 25 kg person jumping from the top of a 30-story building. a) What will the person's approximate speed be when hitting the net? b) How much kinetic energy will the net have to convert into other forms of energy? Note: 1 story = 3.3 m. %3D Inswers: a) 44.1 m/s b) 24 280 J

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Conservation Of Energy

Section: Chapter Questions

Problem 5OQ: Answer yes or no to each of the following questions. (a) Can an objectEarth system have kinetic...

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