the only thing i got is that there's a force acting in the positive x-direction from the electric field, and a force in the negative y-direction from gravity. i don't know how to find where the acceleration would be
A small ball of mass M carries a positive charge Q. The ball is glued to the end of a massless stick of length L. The other end of the stick is attached to a frictionless pivot that allows the pendulum to swing in the xy plane. Gravity is in the minus y direction. A constant electric field Eº...