Question

examples of man made objects that spread an impulse over a large amount of time

Answer 1

Example of object that spread an impulse over a large amount of time: airbag

Explanation:

The impulse exerted on a body during a collision is defined as the product between the force exerted on the body and the duration of the collision:

$I=F \Delta t$

where

I is the impulse

F is the average force

$\Delta t$ is the duration of the collision

Also, the impulse is equal to the change in momentum of the body:

$I=\Delta p$

Therefore

$\Delta p = F \Delta t$

Which can be rewritten as

$F=\frac{\Delta p}{\Delta t}$

Assuming that the change in momentum in the collision is constant, this means that the force exerted on the body is inversely proportional to the duration of the collision: therefore, the larger the time, the smaller the force exerted.

The purpose of the airbag is indeed to increase the duration of the collision, $\Delta t$: this way, the force experienced by the driver during a car accident will be smaller.

Learn more about impulse:

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