Two 1.0-g beads are charged .....???? Hi, I have never posted before but have seen great help given to people who are confused. I would really appreciate help on this question if possible. "Two 1.0-g beads are charged equally and placed 5.0 cm apart. When released, they begin to accelerate at 150 m/s2. What is the magnitude of the charge on each bead?" I am pretty sure I know how to do this question with the equation; (q2=Fr2/k), but I am not too sure if I use gravity or acceleration to find the force. F=ma. I think I would use acceleration since it is given in the question. Any help would be greatly appreciated. Thanks.