What is the force that the car exerts on the driver?

[smh745]

A car traveling at 150 mi/hr strikes a wall and bounces backwards at 30 mi/hr. If the car is in contact with the wall for 0.1 seconds, what is the force that the car exerts on the driver?

 

[tiny-tim]

Hi smh745!

A car traveling at 150 mi/hr strikes a wall and bounces backwards at 30 mi/hr. If the car is in contact with the wall for 0.1 seconds, what is the force that the car exerts on the driver?

(i think it means average force)

Hint: use the full version of good ol' Newton's second law … force = rate of change of momentum