1. Emma pushes a 45.0kg box across a level floor with an applied force of 155N [30° above horizontal]. The force of friction acting is 115N [backwards]. She pushes it 15.0m forward. a. Find the work done by the applied force. Fn Fa 30 • Fwd b. Find the work done by friction. Fg c. Find the work done by gravity.
1. Emma pushes a 45.0kg box across a level floor with an applied force of 155N [30° above horizontal]. The force of friction acting is 115N [backwards]. She pushes it 15.0m forward. a. Find the work done by the applied force. Fn Fa 30 • Fwd b. Find the work done by friction. Fg c. Find the work done by gravity.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 54P: A 5.0-kg box has an acceleration of 2.0m/s2 when it is pulled by a horizontal force across a surface...
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