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 and are pulling horizontally as shown, holding the fixture stationary with respect to the elevator. Note θ=35 degrees.
As the elevator ascends vertically, the magnitude of the force from the chain on the fixture as a function of the vertical position of the elevator, y, is
F_cf(y)=F_0*e-y/y_1
where F_0=103 N and y_1=5.6 m.
Using the fixture as your system, if the elevator goes from y=0 to y=8.4 m, what is the work done by the force from the chain on the fixture?
*Note*- I keep getting 547.027 J, which is incorrect
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