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If wind blows at 35 m/s over a house, what is the net

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli ISBN: 9780130606204 3

Solution for problem 43P Chapter 10

Physics: Principles with Applications | 6th Edition

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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

Physics: Principles with Applications | 6th Edition

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Problem 43P

Problem 43P

If wind blows at 35 m/s over a house, what is the net force on the roof if its area is 240 m2 and is flat?

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Step 1 of 3

ANSWER:The initial velocity of the car is vi= 0 and final velocity is v =f30 m/s.The time difference to achieve the speed is, t = 10 s.So, the acceleration is, v v a = f i = 300 = 30 / 10 = 3 m/s . 2 t 10Mass of the car is 1000 kg.From Newton’s 2nd law, the acceleration is, F = ma = 1000 × 3 = 3000N.By using the equation of motion let’s calculate the distance travelled by the car in those 10seconds. 2 2 V final V initial 2 × a × s 2 30 0 = 2 × 3 × s s = 900 / (2 × 3) = 150 meters.Now, we have both force and displacement. So, the work done will be, W = Force × displacement = 3000 × 150 = 450000 jules.All this work done in 10 seconds. So, power will be, P = W / t = 450000 / 10 = 45000 watts = 45 K.W .CONCLUSION:The average power of the car is 45 KW.\n

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Chapter 10, Problem 43P is Solved
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Textbook: Physics: Principles with Applications
Edition: 6
Author: Douglas C. Giancoli
ISBN: 9780130606204

The full step-by-step solution to problem: 43P from chapter: 10 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. Since the solution to 43P from 10 chapter was answered, more than 886 students have viewed the full step-by-step answer. This full solution covers the following key subjects: area, blows, Flat, Force, house. This expansive textbook survival guide covers 35 chapters, and 3914 solutions. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. The answer to “If wind blows at 35 m/s over a house, what is the net force on the roof if its area is 240 m2 and is flat?” is broken down into a number of easy to follow steps, and 26 words.

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