Question
2 Equal -ve charges -q r placed at pt(0,a) and (o,-a) on y axis , one +ve charge +q at rest is left from pt(2a,0). this charge will not execute SHM . WHY?? even when F α -x condition is satisfying as force is due to both charges is acting & motion is also opposing during oscillating
Joshi sir comment
Solve the question for force, you will get a condition according to which yours statement "even when F α -x condition is satisfying"
is incorrect