An electrically neutral model airplane is flying in a horizontal circle on a 2.5 meter guideline, which is nearly parallel to the ground. The line breaks when the kinetic energy of the plane is 50 Joule. Reconsider the similar situation, except that now there is a point charge of +q on the plane and a point charge of -q at the other end of the guideline. In this case, the line breaks when the kinetic energy of the plane is 52.6 Joule. Evaluate the magnitude of the charges.
q=_____________C