Answer:
In the given case, the force applied by the car is equivalent to the force applied by the snowball. According to Newton's third law of motion, when an object employs a force on the other object, then the other object applies an equivalent and opposite force on the first object, and the law also considers that the two forces are also similar in magnitude and are opposing in direction.
In the mentioned question, it is considered that the force is applied by the snowball on the car, thus, it can be termed as the action force. Thus, the force employed by the car on the snowball is the reaction, and according to Newton's third law, the two forces are similar in magnitude, and thus, the force applied by the car is equivalent to the force applied by the snowball.