Question

Rank an automobile dashboard, seat belt, and air bag in terms of (a) the impulse.(b) the average force each delivers to a front-seat passenger during a collision, from greatest to least.

Answer 1

The correct order is dashboard>  seat belt  >  airbag.

What is the momentum?

• The object's change in momentum is equal to the impulse it experiences. When two objects collide, an impulse occurs, which both causes and equals the change in momentum. This equation states that F • t = m • v.
• Mass in motion is described by momentum, which is the result of an object's mass and velocity. Impulse: An impulse is a force used to change the motion of an object.
• The change in momentum (P) over the change in time (t) equals force (F). And the impulse is equal to the change in momentum (P) (J). The units for momentum and impulse are kg*m/s and N*s, respectively.
• The aggregate of the momentum changes brought on by force is what is referred to as an impulse. A change in momentum is caused by force, not by impulse. Keeping track of the entire amount of force exerted to an object is all that the term "impulse" really means.

a) impulse = change in momentum

Now for all three cases, the change in momentum is the same, so the impulse is equal for all cases.

b) now average force = impulse/time

for the dashboard, time is very less as the person stops suddenly

for seat, belt time is a bit more, and for air bad, time is the greatest

so the average force is the least for airbag.

So the correct order is dashboard   >  seat belt  > airbag.

To learn more about momentum, refer to:

brainly.com/question/402617

#SPJ4