The driver and front seat passengers should sit at least inches away from the air bag.
a. 5
b. 10
c. 12
d. 15

Air bags are kept in the steering wheel or dashboard and expand during a serious collision, usually a front collision that occurs at over 10 mph. To do its important job, an air bag comes out of the dashboard at up to 200 mph, faster than the blink of an eye. It is estimated around 10 inches of space to inflate. The force of an air bag can hurt those who are too close to it. Driver and front seat passengers should be moved as far back as practical, mainly people of short built. It is highly suggested that you be seated no less than 10 inches away from the air bag. Therefore, the answer is letter b.

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .