The field lines (solid lines) shown in the following figure represent the electric field...

The field lines (solid lines) shown in the following figure represent the electric field in a certain region of space. A charged particle is released with an initial velocity and follows the trajectory from points 1 to 4, as shown by the dashed line. Draw vectors to represent the force on the charged particle at each location. What is the sign of the charged particle? Explain how you can tell.