Question

An object with charge q = −5.00×10−9 C is placed in a region of uniform electric field and is released from rest at point A.

After the charge has moved to point B, 0.500 m to the right, it has kinetic energy 5.00×10−7 J .

If the electric potential at point A is +30.0 V, what is the electric potential at point B? What is the magnitude of the electric field? What is the direction of the electric field? What is the direction of the electric field? -from point B to point A -perpendicular to the line AB -from point A to point B