An automobile lift raises a car weighing 3000 lbf, 6 ft off the shop floor (Fig. 2-12). Assuming the lift itself weighs 500 lbf and that friction is negligible, what is the work necessary to raise the car in ft-Ibf and m-N ?

An automobile lift raises a car weighing 3000 lbf, 6 ft off the shop floor (Fig. 2-12). Assuming the lift itself weighs 500 lbf and that friction is negligible, what is the work necessary to raise the car in ft-Ibf and m-N ?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter46: Room Air Conditioners

Section: Chapter Questions

Problem 16RQ

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Concept explainers

Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

Question

2.) An automobile lift raises a car weighing 3000 lbf, 6 ft off the shop floor (Fig. 2-12). Assuming the lift itself weighs 500 lbf and that friction is negligible, what is the work necessary to raise the car in ft-Ibf and m-N ?

Air valve
Plunger
Air pipe
Oil-filled
cylinder
Figure 2-12 Problem 2.

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