ti=0W == Ugfm=13 ib kgUse the values given inthe problem. How much(assume the barbell isat rest in the "final"to =0,80 sYf =0.70mwork does theposition)weightlifter do?Vi=4,0m/sUse the values given inthe problem. How muchwork does the cable do?K; + Ug. + W = 0Uf =0

For the first part, W=Ugf Mass of the barbell is m = 13.6 kg Distance of the final height is h =…

ti=0 w = Ug5 4i =0 m = 13.bkq tp =0,80 s yf=070m yi=60m (assume the barbell is at rest in the "final" position) Use the values given in the problem. How much work does the weightlifter do? Use the values given in the problem. How much work does the cable do? K; + U, + W = 0 Uf =0

ti=0 w = Ug5 4i =0 m = 13.bkq tp =0,80 s yf=070m yi=60m (assume the barbell is at rest in the "final" position) Use the values given in the problem. How much work does the weightlifter do? Use the values given in the problem. How much work does the cable do? K; + U, + W = 0 Uf =0

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 31P: A constant 20-N force pushes a small ball in the direction of the force over a distance of 5.0 m....

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Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

Question

ti=0
W =
= Ugf
m=
13 ib kg
Use the values given in
the problem. How much
(assume the barbell is
at rest in the "final"
to =0,80 s
Yf =0.70m
work does the
position)
weightlifter do?
Vi=4,0m/s
Use the values given in
the problem. How much
work does the cable do?
K; + Ug. + W = 0
Uf =0

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