A point charge is held fixed at the origin

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A point charge

q_1=9.1\,\mu\text{C}

is held fixed at the origin. A second point charge

q_2=-0.42\,\mu\text{C}

with mass

3.2\times10^{-4}\text{ kg}

is placed on the

x

-axis,

0.96\text{ m}

from the origin. The second point charge is released at rest. What is its speed when it is

0.24\text{ m}

from the origin?