Answer
$3.94\times10^{-16}\;N \;west$
Work Step by Step
Use equation 16–3 to calculate the direction and magnitude of the force. A negative charge feels a force in the direction opposite to the local electric field.
$$\vec{E}=\frac{\vec{F}}{q}$$
$$\vec{F}=q\vec{E}=(-1.602\times10^{-19}C)(2460\;N/C\;east)$$
$$= (3.94\times10^{-16}\;N \;west)$$
