A baseball is traveling with a momentum of 6.5 kg m/s. If it gets stopped in 0.020 s, then what is the magnitude of the force that is stopping it?

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.