Assume that 10 J of work pushes a charge initially at rest into an electric field. If the charge is then released, it flies back to its starting position with a kinetic energy of
A)zero.
B)5 J.
C)10 J.
D)more than 10 J.
E)need more information.

Question

Quizplus · Accepted Answer

When the charge is released and flies back to its starting position, it converts all the work done on it (10 J) into kinetic energy, resulting in a kinetic energy of 10 J. This is due to the conservation of energy principle, where the work done on the charge is fully converted into kinetic energy when it returns to its initial position.

Assume That 10 J of Work Pushes a Charge Initially