Determine which of these are action/reaction pairs

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

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?

The heliocentric and the geocentric models of the solar system included these central principles