Suppose That the Speed of an Electron Traveling $1.0 \mathrm {~km} / \mathrm { s }$

Suppose that the speed of an electron traveling $1.0 \mathrm {~km} / \mathrm { s }$ is known to an accuracy of 1 part in 10,000 (that is, within $0.01 \%$ ). What is the minimum uncertainty in the position of this electron? $\left( m _ { \mathrm { e } } \right.$ ectron $\left. = 9.11 \times 10 ^ { - 31 } \mathrm {~kg} , h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right)$