During a car crash at a speed of 30 m/s, a driver with a mass of 60 kg is safely brought to a stop by an airbag in 0.5 seconds. How much force did the airbag absorb?

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

Why do different substances have diffrent properties

Which radioisotope is used in dating geological formations?