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While doing the bench press, you slowly lift a mass m from your chest up to a height hand then lower it slowly back down to your chest. How much work have you done on the mass? Express your answer in terms of some, all, or none of the variables m, h, and the acceleration due to gravity g.

While doing the bench press, you slowly lift a mass m from your chest up to a height hand then lower it slowly back down to your chest. How much work have you done on the mass? Express your answer in terms of some, all, or none of the variables m, h, and the acceleration due to gravity g.

University Physics Volume 1
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 42P: A particle moving in the xy -plane is subject to a force F(x,y)=(50Nm2)(xi+yj)( x 2 + y 2 )3/2 ,...
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Part A While doing the bench press, you slowly lift a mass m from your chest up to a height hand then lower it slowly back down to your chest. How much work have you done on the mass? Express your answer in terms of some, all, or none of the variables m, h, and the acceleration due to gravity g.
Transcribed Image Text:Part A While doing the bench press, you slowly lift a mass m from your chest up to a height hand then lower it slowly back down to your chest. How much work have you done on the mass? Express your answer in terms of some, all, or none of the variables m, h, and the acceleration due to gravity g.
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