Question

which is true of unbalanced forces? unbalanced forces will cause a change in motion. unbalanced forces are equal in size and direction. unbalanced forces action and reaction are equal.

Explanation:

According to Newton's first law, unbalanced forces lead to a change in an object's motion (acceleration). Balanced forces are equal in size and opposite in direction, and action - reaction forces (Newton's third law) are always equal in magnitude regardless of being balanced or unbalanced.

Answer:

Unbalanced forces will cause a change in motion.