0
using newtons second law, force = mass * deceleration , if the deceleration is reduced so is the force, the airbag reduces deceleration. which can be very impressive if you use the steering wheel instead
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoIt would be better to use newtons second law to explain this but okay. well newtons 1st law states that an object in motion will stay in motion unless stopped by a force. So, if your in the car going 40 miles an hour and you suddenly stop the car without slowing down, the car stops but you don't and you would keep going in the same speed and direction without the airbags there or a seatbelt you would fly right through the windshield so the airbag protects you from the objects you would slam into in a car crash.
Wiki User
∙ 9y agoThe first law applies in this case. Something in motion stays in motion until acted upon by an external force.
The car and its contents are moving at a constant rate and everything is fine. When suddenly the brake is applied, the human body continues at the same speed that the car was travelling before the brake was applied.
Seat belts are the first line of injury prevention. They control and slow the forward motion of the body to lessen the force exerted on the body by absorbing some energy by stretching. The seat belt controls the body very well in an accident but has a minimal affect on the force/energy on the head in an accident. This is why accident victims usually sustain whiplash injures during a crash. The head is still moving forward while the seat belt slows the body putting severe strain on the neck. Your neck is the only thing slowing down your head. The forward motion can be great enough to the point where the head hits the steering wheel, causing severe injures.
The airbag is design to cushions this blow by actually catches the head and slowing it more gradually. It might seem extremely fast but this addition fraction of time can prevent serious brain injury. You can watch slow motion video and see how it vents the gases in a control deflation, giving the head more time to decelerate. If the bag didn't deflate it would actually be worse than have none at all. The reason for this is because the impact( with the bag) would be sooner than the steering wheel itself, with more energy still stored in the moving head, from not letting your neck slow it down more gradually.
Wiki User
∙ 12y agoThe airbag slows you down more gradually, so the longer it takes for a change in momentum, the smaller the force. Therefore reducing this risk of a serious head injury.
Wiki User
∙ 10y agoin terms of impulse and momentum, why are air bags in automoblies a good idea?
Wiki User
∙ 12y agoThe airbag swells with air so when the g force of the crash pushes the driver forward, it stop it from hitting the drivers head on the steering wheel.
Add your answer:
Earn +20 pts
According to the law of conservation of in an isolated system the initial total momentum before a collision equals the final total momentum.?
momentum
Many 400g bags in 6 kg?
this is a pretty good answer ngl.
Can objects with different masses have the same momentum?
Yes. Momentum is rigidly defined as the product of mass and velocity. Velocity describes both a speed and a direction. So let's take two metal balls. One weighs 10 kilograms (kg) and the other weighs 20kg. We roll the 10kg ball along a flat and level floor at 2 meters per second (m/s) and the 20 kg ball at 1 m/s. 10*2 = 20*1 so they have the same momentum. If you have a friend roll the balls for you to catch some distance away, making sure after a few tests to roll the lighter ball at twice the speed of the heavier ball, you will find that it "feels" as if both balls hit your hand with about the same force. Your hand is stopping each ball. That is a force which is defined as the rate of change in momentum. Stopping each ball will cause your muscles to exert about the same strength to stop each ball, even though one is moving at double the speed of the other. You will then feel that two objects can indeed travel at different speeds and yet have the same momentum. JGS
Consider photons emitted from an ultraviolet lamp and a TV transmitter. Which is the greater wavelength Which is the greater momentum?
Good luck, Greater wavelength=TV. frequency= the number of wave cycles(peak, trough, peak) per time unit. The higher the frequency, the more times the wave cycles, and the shorter the wavelength. Greater Energy=Ultraviolet lamp. By Placks constant, E(energy) =h(planck's constant which is the energy of a photon divided by it's frequency) / f(the frequency of that photon). Planck's constant is almost irrelevant, so the greater the frequency, the greater the energy. Greater frequency=Ultraviolet lamp. Planck's constant and light spectrum. Greater Momentum= Ultraviolet lamp. Electron diffraction, Wavelength=h(planck's constant) / momentum. rearrange it as M=h/W. The greater the wavelength, the smaller the momentum, and visa versa.
Give an example of the law of conservation of momentum?
Momentum is ALWAYS conserved. To get some interesting examples, think of any situation where the velocity of some object changes - this will change the object's momentum. There will always be some other object whose momentum changes in the opposite direction - the object can be figured out by Newton's Third Law. For example, if a car accelerates or brakes, the interaction is between the car and Planet Earth, so the planet will accelerate in the opposite direction as the car.
What is a good sentence for the word impulse?
Her impulse to shop was starting to take over her whole life. Another good sentence would be, she had a sudden impulse to buy the expensive purse.
Will law of momentum also hold good if momentum is a scalar quantity?
Momentum is never scalar. Are you sure you phrased that right?
What is a good strategy for impulse buying?
Impulse buying means you are making a purchase without a predesigned strategy.
Does the impulse take good photos?
no they don't :(
Whats a good sentence for flamboyant persistent impulse to set fires?
Pyromania is the persistent impulse to set fires.
How healthy are some foods?
In simple terms food in bags, can, and other packaging are processed so they aren't as good for you. As for organic food they are no processed to grown with hormones.
Can you eat bags?
Of course you can eat bags!!!!! they tast good!!!(NOT!!!)
What is the best trash bag company?
The best brand of trash bags has been said to be America's choice bags from Walmart. Another good choice if you are looking for good bags would be Hefty bags.
A good name for a bag store?
Bags and things would be a good name for a store that sells bags.
According to the law of conservation of in an isolated system the initial total momentum before a collision equals the final total momentum.?
momentum
What bags are good for the environment?
paper bags any bag made of recyclable material
Why are air bags good?
Air bags reduce the number of deaths in accidents on the road.
