An $\alpha$-particle with a mass of $6.4 \times 10^{-27} \, \text{kg}$ and a charge of $3.2 \times 10^{-19} \, \text{C}$ is situated in a uniform electric field of $1.6 \times 10^{5} \, \text{V m}^{-1}$. The velocity of the particle at the end of a $2 \times 10^{-2} \, \text{m}$ path when it starts from rest is: