Jenny is traveling southward. In order to stop, she needs a northward acceleration.
A better way to say it:
Jenny is traveling southward in her bumper car, so the direction of her velocity is south. In order to reduce her velocity to zero, a velocity of equal magnitude but directed north must be added to it. Then the change in velocity is positive northward, and the change in velocity per unit time is acceleration.
The direction of the acceleration of Jenny's car during the collision is Northward.
Acceleration:
It is defined as the rate of change in the velocity or direction of body.
Here, the direction of Betty's car was Southward. After collision, both the cars comes to a stop.
It means that the cars were moving in the opposite direction.
Therefore, the direction of the acceleration of Jenny's car during the collision is Northward.
To know more about Acceleration:
https://brainly.com/question/1403523
