Answer:
a)
b)
Step-by-step explanation:
Given:
Charge on particle(1) =
Charge on particle(3) =
Angle made by particle 1 with the x axis
Angle made by particle 3 with the x axis
a) If the acceleration particle 3 is along the positive x axis then then it means the net force on the charge along y axis is zero so
b) If the acceleration particle 3 is along the positive y axis then then it means the net force on the charge along x axis is zero so