Answer:
a pitcher throwing a baseball
a car accelerating downhill
a toy rocket being launched into the air
Step-by-step explanation:
As per Newton's II law we know that when an object will have unbalanced force on it then it will become accelerated.
So here we know that
![F = ma](https://img.qammunity.org/2019/formulas/physics/middle-school/5f5bp1hv2rrdgiu0bfj00tk5qdgslevtn0.png)
so in order to find the unbalanced force condition we will here find the condition of acceleration in the given all cases
a baseball resting on a table = Not accelerated so it is balanced force
a pitcher throwing a baseball = baseball is accelerated so it is unbalanced
a car stalling at a stoplight = car is at rest so no acceleration so it is balanced force
a car accelerating downhill = here its accelerating so it is unbalanced
a rubber duck floating in a bathtub = No acceleration so it is balanced force
a toy rocket being launched into the air = Accelerating so it is unbalanced