Question

knowing that the coins and the potato are not moving and that the forces are balanced, which statement is most accurate about forces and motion?
motion or a change in motion only occurs when forces are balanced.
motion or a change in motion only occurs when forces are unbalanced.

Explanation:

According to Newton's first law of motion, an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. When forces are balanced, there is no net force acting on the object, so the object will not start moving or change its motion (if it was already moving). When forces are unbalanced, there is a net force, which can cause the object to start moving (if it was at rest) or change its motion (if it was already moving).

Answer:

Motion or a change in motion only occurs when forces are UNBALANCED.