F = m a
Negative force causes a NEGATIVE acceleration. The wording of the problem is poor.
A nonzero net force acts on a moving ball, and the ball comes to a stop. Which statement is correct about the relationship between the net force and the ball's movement?
The net force causes a decrease in acceleration because without the force, the ball's movement would remain the same.
A decrease in acceleration causes the net force to be nonzero because causation works in both directions.
The net force causes an increase in acceleration because without the force, the ball's movement would remain the same.
An increase in acceleration causes the net force to be nonzero because causation works in both directions.
2 answers
The net force causes a decrease in acceleration because without the force, the ball's movement would remain the same.