During a car accident, a 125 kg driver is moving at 31 m/s and in 1.5 seconds is brought to rest by an inflating air bag. What i
2 answers:
The momentum of a moving object can be expressed as:
where
m is the object's mass
and v stands for velocity.
Prior to the vehicular mishap, the driver (with a mass of m=125 kg) was traveling at a rate of v=31 m/s, indicating his initial momentum as:
However, after the accident, the driver is at rest: this implies his final velocity is nil, resulting in a final momentum of zero:
. This indicates the change in momentum equals to his initial momentum:
thus the accurate response is D.
where
m is the object's mass
and v stands for velocity.
Prior to the vehicular mishap, the driver (with a mass of m=125 kg) was traveling at a rate of v=31 m/s, indicating his initial momentum as:
However, after the accident, the driver is at rest: this implies his final velocity is nil, resulting in a final momentum of zero:
thus the accurate response is D.
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