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## Homework Statement

A piece of machinery of weight

*W*is temporarily supported by cables

*AB, AC,*and

*ADE.*Cable

*ADE*is attached to the ring at

*A,*passes over the pulley at

*D*and back through the ring, and is attached to the support at

*E.*Knowing that the tension in cable

*AB*is 300 N, determine (a) the tension in

*AC,*(b) the tension in

*ADE,*(c) the weight

*W*. (Hint: The tension is the same portions of cable

*ADE.*)

Here is a link to the picture of the drawing just with a different problem (On page 63 Fig. P2.123):

http://books.google.com/books?id=o4...5j4Cg&sa=X&oi=book_result&ct=result&resnum=7"\

## Homework Equations

[tex]\Sigma[/tex]

**F**= 0

**F**= F

**U**(u is a unit vector pointing in the direction of

**F**)

**U**=

**AB**/AB (AB is a distance vector for example describing the length and oreintation of the cables in this problem)

## The Attempt at a Solution

I first am finding

**U**for cables AC, AE, AD, and AB and then I multiply that vector by the unknown magnitude of the tension. I then sum all the x, y, and z components of each cable tension and the weight of the machine giving me 3 equations with three unknowns. Solving these equations does not give me the correct answers to this problem. I think I am solving it in the correct way I just can't figure out what I am doing wrong. Is my way of solving this problem correct?

Thanks in advance,

KEØM

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