An accelerated electron has a speed of $5 \times 10^6 \mathrm{~ms}^{-1}$ with an uncertainty of $0.02 \%$. The uncertainty in finding its location while in motion is $x \times 10^{-9} \mathrm{~m}$.
The value of $x$ is $\_\_\_\_$ (Nearest integer)
[Use mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}, \mathrm{~h}=6.63 \times 10^{-34} \mathrm{Js}, \pi=3.14$ ]