Answer:
<h2><em>A. Neutron</em></h2>
Explanation:
Neutrons and protons are found in the nucleus of an atom. BUT unlike Protons <em>(Positive charge/ P an P is how I remember it) </em>or Electrons, which have a <em>negative charge,</em> Neutrons have zero charge which means they are neutral particles. <em>(Neutral an Neutron both start with N.)</em>
<em>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`</em>
Good luck.
<em>Lb.</em>
<em />
Remember velocity = distance/time so that mean you would do 60/3 which equals 20 so the speed(velocity) equals 20
