Two unequal masses, `m_1 = 2m` and `m_2 = m` have unequal positive charge on them. They are suspended by two mass-less threads of unequal lengths from a common point such that, in equilibrium, both the masses are on same horizontal level. The angle between the two strings is `theta=45^(@)` in this position. Find the Electrostatic force applied by `m_1` on `m_2` in this position.

Answer

`((sqrt(17)-3)/(2))mg`