1. The problem statement, all variables and given/known data A charge of +3.37µC is held fixed at the origin. A second charge of 3.37µC is released from rest at the position (1.15 m, 0.590 m) . (a) If the mass of the second charge is 2.90 g, what is its speed when it moves infinitely far from the origin? (b) At what distance from the origin does the 3.37 µC charge attain half the speed it will have at infinity? Reference https://www.physicsforums.com/threads/charge-at-origin.131159/ (I have the same question as someone else who already asked this question but I still couldn't get the answer) 2. Relevant equations 1/2mv^2 = qV U= kQq/r 3. The attempt at a solution I already found the answer to A just using Conservation of Energy. But I can't find the answer to B. √2kq2m(1r0−1r)=12√2kq2m1r0 Someone else wrote how to find part B, but when I solved for it my answered ended solving for r as r= ro/3 but when I tried this, I couldn't figure it out. My ro was Sqrt(1.6706) so I thought the answer would be Sqrt(1.6707)/3 but it wasn't right.