If the impulse to stop a fast-moving person in a car crash is the same whether he that she hates the dashboard or an airbag then why do we prefer the airbag explain with the impulse momentum theorem how would quadrupling the time affect the force

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.

The force is push or pull

Ithink it’s b hope it