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Default Rope and Block Question #1

DSK wrote:
At what angle does the sheave load match the line load?
[1 pt]



Martin Baxter wrote:
arcsin(1000/2000)=30 degrees (actual angle of line-block-line= 150
degrees)


30 degrees from what?


30 degrees above the horizontal. That's the point where the vector
parallelograms form nice equilateral triangles.



Seems to me that the running part would have to be above horizontal for
the load on the sheave to match the load on the line.

DSK


 
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