in a car, how does an air bag minimize the force acting on a person during a collision?\nit increases the…

in a car, how does an air bag minimize the force acting on a person during a collision?\nit increases the change in momentum of the person.\nit decreases the change in momentum of the person.\nit increases the time it takes for the person to stop.\nit decreases the time it takes for the person to stop.

in a car, how does an air bag minimize the force acting on a person during a collision?\nit increases the change in momentum of the person.\nit decreases the change in momentum of the person.\nit increases the time it takes for the person to stop.\nit decreases the time it takes for the person to stop.

Answer

Brief Explanations:

According to the impulse - momentum theorem $J = F\Delta t=\Delta p$. In a collision, the change in momentum $\Delta p$ of the person is fixed (determined by the initial and final velocities). An air - bag increases the time $\Delta t$ it takes for the person to stop. Since $F=\frac{\Delta p}{\Delta t}$, when $\Delta p$ is constant, increasing $\Delta t$ will decrease the force $F$ acting on the person.

Answer:

It increases the time it takes for the person to stop.