Car starts after banging the starter.Could there be a problem other than starter

What is your question?

The car will not start without banging on the starter. Could there be something else causing the car not to start other than the starter? Problem has been occurring for about a week.

What makes this problem better or worse?

Nothing It has a mind of its own.

How long has your 2006 Kia Optima had this problem?

about a week.