Now lets deal with the x direction 
points in the y direction so we don't
need to worry about it. So we have 
. expressing this
using eqs. 1.12 and 1.13 we have
or 
. That makes sense.
The tension in the two strings are the same because the angles
are the same. It would seem bizarre if this was not true.
Now the y direction. We have to include all the tensions,
. But we know 
and
. So that means that
, or
