	18	*

Interactive LearningWare 18.2 provides one approach to solving problems such as this one. The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q₁=+8.00 mC; the other two have identical magnitudes, but opposite signs: q₂=–5.00 mC and q₃=+5.00 mC. (a) Determine the net force (magnitude and direction) exerted on q₁ by the other two charges. (b) If q₁ had a mass of 1.50 g and it were free to move, what would be its acceleration?