When is it safe to try to escape from a sinking vehicle?

It's important to recognize that when a vehicle is sinking, the pressure of the water outside the vehicle is much greater than the pressure inside, particularly if the windows are closed. This pressure difference can make it extremely difficult to open doors or windows while the vehicle is still partially submerged.

The correct answer emphasizes the importance of allowing the water pressure to equalize. This happens when the vehicle is almost completely submerged, causing the water to rise inside to the same level as it is outside. Once the pressure is equal, it becomes significantly easier to open the doors or windows and escape safely. Trying to escape immediately or after an arbitrary time frame can lead to panic and worsen the situation, while waiting until the vehicle is fully submerged could also be dangerous, as getting trapped could become a real risk.

Understanding these dynamics is crucial for reacting appropriately in such emergency scenarios.