Final answer:
When a negative source charge is held fixed and a positive probe nearby is given a kick so that it initially moves away from the probe, it will continue moving away for a while due to the repulsive force between like charges.
Step-by-step explanation:
When a negative source charge is held fixed and a positive probe nearby is given a kick so that it initially moves away from the probe, it will continue moving away for a while. This can be explained by the repulsive force between the like charges. The negative source charge will create an electric field that pushes the positive probe away, causing it to move further from the source charge.