A particle (charge +40 mu C) is located on the x axis at the point x=-20cm, and a second particle (charge -50 muC) is also on x axis x=30cm. What is the magnitude of the total electrostatic force on a third particle (charge-=4 muC) placed at origin x=0

Question

A particle (charge +40 mu C) is located on the x axis at the point x=-20cm, and a second particle (charge -50 muC) is also on x axis x=30cm.  What is the magnitude of the total electrostatic force on a third particle (charge-=4 muC) placed at origin x=0

anonymous · Answer

do you know the formula to find the magnitude of force acting between two charged particles????

anonymous · Answer

well the equation giving the force between two charged particles is,
F=k(q1)(q2)/r^2
q1 and q2 are the magnitude of charges and r is the distance between them.
yo should find the electrostatic force on the charge at origin individually from other charges and add them.