//Example 19.3
q=-1.60*10^-19;//Charge of electron (C)
V=-100;//Potential difference (V)
m=9.11*10^-31;//Mass of electron (kg)
v=sqrt(2*q*V/m);//Final speed (m/s)
//Above equation derived from equation of conservation of energy
printf('Final speed of electron = %0.2e m/s',v)
//Openstax - College Physics
//Download for free at http://cnx.org/content/col11406/latest