We study three point charges at the corners of a triangle. Their charges are q1 = +4.0 10-9 C, q2 = −2.5 ✕ 10−9 C, and q3 = +5.0 10-9 C. Two distances of separation are also given,

Question

We study three point charges at the corners of a triangle. Their charges are q1 = +4.0  10-9 C, q2 = −2.5 ✕ 10−9 C, and q3 = +5.0  10-9 C. Two distances of separation are also given, 
ℓ12 = 6 m and  ℓ13 = 9 m.
Find the net electric force on q3

1- Fnet, x (N)
2- Fnet, y (N)

Chanz · Answer

Unfortunately two sides do not determine a triangle. You're going to need an angle or the third side to do this one.