A body that weighs gm-wt is attached at the end of a string whose length is cm.
The body is in equilibrium under the effect of a horizontal force having a magnitude of gm-wt
that keeps the body at a distance of cm away from the vertical surface.
Determine and .
First, find the angle using trigonometry.
Draw a diagram to find all angles in the problem.
By applying Lami's rule, we get