A box is pulled along a rough horizontal surface by a horizontal force of 80 N. The frictional force between the box and the surface is 60 N. Which of the following is the possible increase of internal energy (AU) and increase of kinetic energy (AK) at the end of the process? A. AU = 200 J, AK = 600 J B. AU = 600 J, AK = 200 J C. AU = 600 J, AK = 800 J D. AU = 200 J, AK = 800 J

A box is pulled along a rough horizontal surface by a horizontal force of 80 N. The frictional force between the box and the surface is 60 N. Which of the following is the possible increase of internal energy (AU) and increase of kinetic energy (AK) at the end of the process? A. AU = 200 J, AK = 600 J B. AU = 600 J, AK = 200 J C. AU = 600 J, AK = 800 J D. AU = 200 J, AK = 800 J

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter3: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 79AP: Consider the process shown below. During steps AB and BC, 3600 J and 2400 J of heat, respectively,...

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