Chapter 21, Problem 21.72P

Two point charges q₁ and q₂ are held in place 4.50 cm apart. Another point charge Q = −1.75 μC, of mass 5.00 g, is initially located 3.00 cm from both of these charges (Fig. P21.72) and released from rest. You observe that the initial acceleration of Q is 324 m/s² upward, parallel to the line connecting the two point charges. Find q₁ and q₂.

Figure P21.72