An air bag is used to safely decrease the

momentum of a driver in a car accident. The air

bag reduces the magnitude of the force acting on

the driver by

(1) increasing the length of time the force acts

on the driver

(2) decreasing the distance over which the force

acts on the driver

(3) increasing the rate of acceleration of the

driver

(4) decreasing the mass of the driver

Question

09-06-2015
Physics

Answered

An air bag is used to safely decrease the

momentum of a driver in a car accident. The air

bag reduces the magnitude of the force acting on

the driver by

(1) increasing the length of time the force acts

on the driver

(2) decreasing the distance over which the force

acts on the driver

(3) increasing the rate of acceleration of the

driver

(4) decreasing the mass of the driver

Verified Answer :

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SpeedAngel SpeedAngel · Answer 1 · 2015-06-09T18:08:10-04:00

The answer is 1. 4 is incorrect because you can't really decrease the mass of the driver. 3 is incorrect because accelerating the driver would cause more damage than not. 2 is incorrect because decreasing the distance would only cause more damage. 1 is correct because by increasing the length of time the force acts on the driver helps reduce the speed of the driver and cause the drive to sustain less injuries. Hope that helps.