1. The problem statement, all variables and given/known data Two charges of masses m and 2m, charges 2q and q respectively are placed in a uniform electric field and are allowed to move at exactly the same time. Find the ratio of their kinetic energies. 2. Relevant equations Field = qE Force =(Kq1q2)/r^2 Kinetic energy=1/2mv^2 3. The attempt at a solution I found their initial accelerations by finding the Coloumb force on each and then dividing by their respective masses. Then I used the equation v= u + at and found the kinetic energies. But I'm getting the ratio as 2:1 whereas the answer is 8:1.