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You are trying to move a light fixture into an apartment. There are hooks in the elevator so you hang the fixture on a hook with a chain. You don't want the fixture to touch the walls, so you attach a rope to the side that pulls horizontally as shown, keeping the fixture stationary with respect to the elevator. Note 0 = 34°.

You are trying to move a light fixture into an apartment. There are hooks in the elevator so you hang the fixture on a hook with a chain. You don't want the fixture to touch the walls, so you attach a rope to the side that pulls horizontally as shown, keeping the fixture stationary with respect to the elevator. Note 0 = 34°.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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I am unsure how to start this problem, especially pertaining to how to get the work integral formula set up.

Work From Chain Using the fixture as your system, if the elevator goes from y = 0 to y = 3.96 m, what is the work done by the tension force in the chain on the fixture? Reminder About Work Make Sure to Integrate! Wef = Work is the INTEGRAL of the force over the displacement. This force is not constant, so you cannot use the simple deifnition of work. It is always best to integreate to determine work since that method always works. If you look closely at the picture, you will see that the tension force is not pointed straight up. Remember that only the component of a force parallel to the displacement can do work. So which component of the force does work?
Transcribed Image Text:Work From Chain Using the fixture as your system, if the elevator goes from y = 0 to y = 3.96 m, what is the work done by the tension force in the chain on the fixture? Reminder About Work Make Sure to Integrate! Wef = Work is the INTEGRAL of the force over the displacement. This force is not constant, so you cannot use the simple deifnition of work. It is always best to integreate to determine work since that method always works. If you look closely at the picture, you will see that the tension force is not pointed straight up. Remember that only the component of a force parallel to the displacement can do work. So which component of the force does work?
You are trying to move a light fixture into an apartment. There are hooks in the elevator so you hang the fixture on a hook with a chain. You don't want the fixture to touch the walls, so you attach a rope to the side that pulls horizontally as shown, keeping the fixture stationary with respect to the elevator. Note 0 = 34°. Chain Rope Fixture As the elevator ascends vertically, the magnitude of the tension force in the chain from the elevator on the fixture as a function of the vertical position of the elevator, y, is Fef (y) = Foe y/yı where Fo = 155 N and y1 = 4.4 m.
Transcribed Image Text:You are trying to move a light fixture into an apartment. There are hooks in the elevator so you hang the fixture on a hook with a chain. You don't want the fixture to touch the walls, so you attach a rope to the side that pulls horizontally as shown, keeping the fixture stationary with respect to the elevator. Note 0 = 34°. Chain Rope Fixture As the elevator ascends vertically, the magnitude of the tension force in the chain from the elevator on the fixture as a function of the vertical position of the elevator, y, is Fef (y) = Foe y/yı where Fo = 155 N and y1 = 4.4 m.
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