Three cables are used to tether a balloon as shown. Knowing that the balloon exerts a 1000N

[@kyuubi4975]

i think the positive and negative sign in equation 3 is wrong?

[@engrclidez]

The sign depends on the conventions you have set, In this case, the backward axis was treated as the positive axis while the forward axis was treated as the negative axis. However, the forward axis is generally treated as the positive axis, especially when using vectors. But, I'm just used to right being positive and left being negative (in the isometric view), so I altered my axis conventions. Try to change the signs and you will still get the same results po when solving the equations simultaneously.

[@kyuubi4975]

@@engrclidez i see, di ko po napansin sign convention niyo. thanks!

[@engrclidez]

@@kyuubi4975 sige po lodi pero better yung convention nyo po na positive yung forward axis para madaling magamitan ng matrix mode hehe