Question

how do the braking system problems of cars that have been recalled for safety issues apply to the impulse momentum theorem?

Answer 1

You might wanna check this out for understanding the concept behind this q:
http://www.physicsclassroom.com/class/momentum/Lesson-1/Momentum-and-Impulse-Connection

Answer 2

also, the more the momentum the car has the harder it is to stop it..

Answer 3

more the momentum means more the velocity of the car..

Answer 4

Hope this helps