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A net force acts on an object and accelerates it from rest

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 13DQ Chapter 6

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 13DQ

A net force acts on an object and accelerates it from rest to a speed v1. In doing so, the force does an amount of work W1. By what factor must the work done on the object be increased to produce three times the final speed, with the object again starting from rest?

Step-by-Step Solution:

Solution 13DQ Introduction The work done by the force on the object will be equal to the work done kinetic energy gained by the object during its acceleration. Now since the object started from rest, the final kinetic energy of the object will be equal to the work done by the force. Hence we will calculate the final kinetic energy and compare the work done. Step 1 Suppose m is the mass of the object. Hence the kinetic energy after achieving the velocity v1is 1 2 E k1 = 2v 1 Since, all the energy of gained by the object coming from the force applied to the object, from the conservation of energy we can say that the kinetic energy gained by the object is equal to the work done by the force. Hence we have E k1 = W 1 mv2 12

Step 2 of 2

Chapter 6, Problem 13DQ is Solved
Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

This textbook survival guide was created for the textbook: University Physics, edition: 13. The answer to “A net force acts on an object and accelerates it from rest to a speed v1. In doing so, the force does an amount of work W1. By what factor must the work done on the object be increased to produce three times the final speed, with the object again starting from rest?” is broken down into a number of easy to follow steps, and 53 words. This full solution covers the following key subjects: Object, Rest, speed, work, Force. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. University Physics was written by and is associated to the ISBN: 9780321675460. The full step-by-step solution to problem: 13DQ from chapter: 6 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. Since the solution to 13DQ from 6 chapter was answered, more than 346 students have viewed the full step-by-step answer.

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