An electric elevator with a motor at the top has a multistrand cable weighing 5.5 lb/ft. When the car is at the first floor, 130 ft of cable are paid out, and effectively 0 ft are out when the car is at the top floor. How much work does the motor do just lifting the cable when it takes the car from the first floor to the top?

An electric elevator with a motor at the top has a multistrand cable weighing 5.5 lb/ft. When the car is at the first floor, 130 ft of cable are paid out, and effectively 0 ft are out when the car is at the top floor. How much work does the motor do just lifting the cable when it takes the car from the first floor to the top?

Name: An electric elevator with a motor at the top has a multistrand cable
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Description: An electric elevator with a motor at the top has a multistrand cable weighing 5.5 lb/ft. When the car is at the first floor,130 ft of cable are paid out, and effectively 0 ft are out when the car is at the top floor. How much work does the motordo j

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter10: Work, Energy And Machines

Section10.1: Work And Energy

Problem 2PP

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