A proton and an electron are held in place on the x-axis. The proton is at , while the electron is at . They are then released from rest...

A proton and an electron are held in place on the x-axis. The proton is at , while the electron is at . They are then released from rest simultaneously and allowed to interact via the electric force. Which particle reaches the origin first? They reach the origin at the same time. The proton. The electron. Neither particle reaches the origin.