The path of a projectile is called a ???

Projectile motion is a form of motion where an object moves in parabolic path; the path that the object follows is called its trajectory.

Explanation:

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)