A point charge of mass is released from rest at a location where the electric potential is

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential

Problem

+2.0\,\mu\text{C}

point charge of mass

0.50\,\text{g}

is released from rest at a location where the electric potential is

900\,\text{V}

. It later arrives at a point where the potential is

300\,\text{V}

. Neglecting all non-electric forces, what is the charge’s speed at the second point? (a)

1.5\,\text{m/s}

(b)

2.2\,\text{m/s}

(c)

4.4\,\text{m/s}

(d)

3.1\,\text{m/s}