Three point charges, two positive and one

negative, each having a magnitude of 30 µC
are placed at the vertices of an equilateral
triangle (43 cm on a side).
What is the magnitude of the electrostatic
force on one of the positive charges?
The value of the Coulomb constant is
8.98755 × 109 N · m2
/C
2
.
Answer in units of N.

1 answer