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lidiya [134]
2 years ago
8

In general, the ________ of a simple machine is the ratio of the distance over which the force is applied to the distance over w

hich the load is moved.
Physics
2 answers:
aksik [14]2 years ago
3 0
Mechanical advantage, i hope i helped you!
andrey2020 [161]2 years ago
3 0
Mechanical advantage 
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A student's life was saved in an automobile accident because an airbag expanded in front of his head. If the car had not been eq
dexar [7]

Answer:    

Compared to windshield the airbag exerts much lesser force  

Explanation:

Impulse is defined as change in momentum of the object when it is acted upon by a force during interval of time

<em>Impulse = Impulsive force *time</em>

I = F*Δt

If the object should be bought to rest from certain velocity there should be change in momentum. If the duration in which the momentum is increased then there would be less force applied and hence less damage.

Airbags are used to reduce the force experience by the people when they are met with accident by extending the time required to stop the momentum.

During the collision, the passenger is carried towards the<em> windshield</em> and if they are stopped by collision with wind shield the force will be larger and more damage.But if they are hit with airbag then the force will be less due to increased time.

The change is momentum will be the same with or without momentum but its the time that decides the impact of force.By making it longer the force become less.

<em>Thus compared to the windshield the airbag exerts much lesser force.</em>

<em>   </em>

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3 years ago
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Longitudinal waves transfer energy parallel to the direction of the wave motion
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A, flat water

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