Answered: A 120ft. cable weighing 6lb/ft supports…

A 120ft. cable weighing 6lb/ft supports a safe weighing 800lb. Find the work (in ft. – Ib) done in winding 80ft. of cable on a drum.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 26P: Find the force corresponding to the potential energy U(x)=a/x=b/x2.

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Question

CALCULUS II

A 120ft. cable weighing 6lb/ft supports a safe weighing 800lb.
Find the work (in ft. – Ib) done in winding 80ft. of cable on a drum.

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