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A 12-pack of Omni-Cola (mass 4.30 kg) is initially at rest

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

Solution for problem 25E 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 25E

A 12-pack of Omni-Cola (mass 4.30 kg) is initially at rest on a horizontal floor. It is then pushed in a straight line for 1.20 m by a trained dog that exerts a horizontal force with magnitude 36.0 N. Use the work–energy theorem to find the final speed of the 12-pack if (a) there is no friction between the 12-pack and the floor, and (b) the coefficient of kinetic friction between the 12-pack and the floor is 0.30.

Step-by-Step Solution:

Solution 25E Introduction In this problem we will first calculate the net work done on the packet by the force applied on the packet. The net work done will be converted to the kinetic energy. By equating the work done with kinetic energy we will calculate the final velocity. Step 1 If F is the applied force and d is the displacement, then the work done by the force is given by W = Fdcos When there is no friction, the net work done will be equal to the work done by the force applied by the dogs. In this case we have F = 36.0 N 1 d = 1.20 m And angle = 0° Hence the work done is W = F dcos = (36.0 N)(1.20 m)cos(0°) = 43.2 J 1 1 Now suppose v i1 the velocity of the pack, then the kinetic energy is 1 2 1 2 Ek1 = 2v 1 = (2.30 kg)v 1 = 43.2 J 2(43.2 J) v =1 (4.30 kg)4.48 m/s So, if there is no friction, the velocity of the pack will be 4.48 m/s.

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Chapter 6, Problem 25E is Solved
Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

The answer to “A 12-pack of Omni-Cola (mass 4.30 kg) is initially at rest on a horizontal floor. It is then pushed in a straight line for 1.20 m by a trained dog that exerts a horizontal force with magnitude 36.0 N. Use the work–energy theorem to find the final speed of the 12-pack if (a) there is no friction between the 12-pack and the floor, and (b) the coefficient of kinetic friction between the 12-pack and the floor is 0.30.” is broken down into a number of easy to follow steps, and 78 words. This full solution covers the following key subjects: pack, floor, horizontal, Friction, line. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. University Physics was written by and is associated to the ISBN: 9780321675460. This textbook survival guide was created for the textbook: University Physics, edition: 13. The full step-by-step solution to problem: 25E from chapter: 6 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. Since the solution to 25E from 6 chapter was answered, more than 519 students have viewed the full step-by-step answer.

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