A 1,000 -W motor powers a hoist used to lift cars at a service station. -How much time would it take to raise a 1,500-kg car 2 m? - if the original motor is replaced with one rated at 2,000W , how long would it take to complete this task?
A 1,000 -W motor powers a hoist used to lift cars at a service station. -How much time would it take to raise a 1,500-kg car 2 m? - if the original motor is replaced with one rated at 2,000W , how long would it take to complete this task?
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 20SSC
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A 1,000 -W motor powers a hoist used to lift cars at a service station.
-How much time would it take to raise a 1,500-kg car 2 m?
- if the original motor is replaced with one rated at 2,000W , how long would it take to complete this task?
Expert Solution
Step 1
Given data:
Power (P) = 1000 W
Mass (m) = 1500 kg
Height (h) = 2 m
New Power (P') = 2000 W
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