1. The problem statement, all variables and given/known data a.) Two equally charged particles, held 22.4 cm apart, are released from rest. The initial acceleration of the first particle is observed to be 4.0 m/s2 and that of the second particle is 6.0 m/s2. If the mass of the first particle is 3.40 x 10-7 kg, determine the mass of the second particle in kg. b.)For the previous problem, determine the charge on the particles? 2. Relevant equations F = ma, m = f/a, e = 1.609 x 10^-19 3. The attempt at a solution I am able to determine the mass of the second particle which is 2.26 x 10^-7. The second question states that we should find the charge on the particles. I tried to multiply the mass of the second particle by 1.609 x 10^-19. But i dont think that is the right formular because the unit does not cancel. Pls, is there any formula for charge?