Changes

| style="height:20px; width:200px; text-align:center;" |In this animation there is [[linear]] [[acceleration]] and [[deceleration]] as the cars change [[speed]] as well as an [[acceleration]] due to changing direction.

The passengers notice this [[acceleration]] because it feels as if a [[force]] is acting on them:

#When the car speeds up the passengers feel the [[force]] of the back of the chair [[accelerating]] them.

#When the car turns quickly the passengers feel the [[force]] of the side door changing their direction.