Shooting Particles - Part I

Consider a small positive particle being shot at a large, fixed positively chaged object as shown below.

• Will the small particle speed up or slow down? Answer this question from three perspectives
  • a force perspective
  • an E-field perspective, and
  • an energy perspective.
    
    
• Does the small particle have constant acceleration?
• How would your answer change if the sign of the fixed charge was negative?
• Graph the graph the electric potential of the fixed object as a function or r, the distance from the fixed object.