Question

1. which could be an example of an unbalanced force? a. a plate sitting on a dining room table b. a ball at the top of a hill that is not moving c. a car parked on the side of the road d. a baseball that has been thrown to home plate

Explanation:

An unbalanced force causes a change in motion. A plate on a table, a non - moving ball at the top of a hill, and a parked car are all in a state of equilibrium with balanced forces. A thrown baseball is in motion and has forces acting on it that are not balanced (gravity, air resistance etc.) causing its motion to change.

Answer:

D. A baseball that has been thrown to home plate