A car driving from Tucson to Nogales is distracted by someone throwing a passport into the open window of a bus, veers off the road, and
crashes into a cactus. The driver is luckily wearing his seatbelt, which causes him to decelerate from 110 km/hour to a dead stop in
50 milliseconds.

A driver not wearing a seatbelt would fly forward and strike the steering wheel, decelerating much more suddenly –- over, say, 6 ms. What is the acceleration (in "g’s", or multiples of Earth’s gravity) of the driver now?

Question

A car driving from Tucson to Nogales is distracted by someone throwing a passport into the open window of a bus, veers off the road, and
crashes into a cactus. The driver is luckily wearing his seatbelt, which causes him to decelerate from 110 km/hour to a dead stop in
50 milliseconds.

A driver not wearing a seatbelt would fly forward and strike the steering wheel, decelerating much more suddenly –- over, say, 6 ms. What is the acceleration (in "g’s", or multiples of Earth’s gravity) of the driver now?