A 1000 W motor powers a hoist used to lift carscat a service station. If the original motor is replaced with one rated at 2,000 W, how long would it take to complete this task
A 1000 W motor powers a hoist used to lift carscat a service station. If the original motor is replaced with one rated at 2,000 W, how long would it take to complete this task
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 74P: (a) Fir the useful power output of an elevator motor that Lifts a 2500-kg load a height of 35.0 m in...
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A 1000 W motor powers a hoist used to lift carscat a service station.
If the original motor is replaced with one rated at 2,000 W, how long would it take to complete this task?
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Step 1
If a car of mass m is lifted up to h height then work done by the motor is W=mgh
and if the time taken in this process is then power P=
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