race car seat design

race car seat design
forces working together…?

Two cars, travelling at the same speed, are involved in separate crashes. driver A is 100kg and driving an old car with ‘fixed’ seat belts. he decelerates from 30 m/s to rest in 1 second.
Driver B is also 100 kg, but driving a car with more modern ‘inertia-type’ seat belts. these seat belts extend slightly before bringing the driver to a stop, so they bring the driver to a stop more slowly. driver B decelerates from 30m/s to rest in 3 seconds.

a) calculate the deceleration of both drivers, show your working.
–> I did: driver A: 30-1/10 = 29.9 m/s 2
driver B: 30-3/10= 29.7 m/s 2

Is this the right answer?

b) calculate the force exerted by the seat belts on both drivers.
c) explain why the ‘inertia-type’ seat belts are safer to way.
d) how might this ‘theory’ be used to design crash barriers on motorways or at racing circuits ?

I understood the b) but to do it I need to be sure the a) is correct.
thanks!

i am afraid ur answer is wrong
deceleration or retardation is decrease in speed per unit of time
so in first case it is: 30/1=30(meter per second square)
and in next case it is 30/3=10 (m/s^2)
force = mass * acceleration
means 3000 newton and 1000 newton resp.
less force exerted by belt hence more safe to use..

use this theory
more is time taken to reduce speed to zero safer the belts

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History of Sports Cars and Why is it Desired by Many

Sports Car may be defined as a car with a sporty look, meaning an automobile which is short in height as compared to other cars to the extent that it almost touches the ground, having a powerful engine and light weight. A typical sports car has two seats, two doors, rear-wheel drive and with high speed. It is in fact a speedy car that needs to be handled quite efficiently and accurately. There are a number of popular companies that manufacture a perfect sports car like Ferrari, BMW’s mid-sized sports car, Porsche, Lotus etc. However a sports car consists of a light-weight powerful engine with ultra modern suspension and a firm chassis due to these features the sports car that is light weight performs more accurately as compared to heavy sports cars. Initially the cars were just considered an important mode of transport for carrying people and goods from one place to the other, and were manufactured to provide its core utility of transporting the people with comfort. Later on these cars soon became a craze amongst the people and a great fascination to drive it with speed and race, apart from its basic usefulness. This was the new era to welcome the sports cars. The trend of sports car started after the Second World War when a new class of sports car was introduced. Initially a very expensive luxury car meant only for the rich and the famous personalities was seen on race tracks are now available with road functionalities and with reasonable pricing structure. There were just a few cars in the historical phase but now these cars are easily obtainable to a normal individual. Enzo Ferrari was the first person design the sports car, in 1929. Then he was followed by many other car designers who started a new age of Sports Car. Ferrari’s entire unit used advanced technologies and modifications and emerged out in the whole world to create a history by manufacturing the Formula One Racing Car, which is an obsession now and will remain in future. The most eligible and fantastic drivers for formula one are Michael Schumacher and Alberto Ascari, who promoted the Ferrari Sports Car to success. Then came the F430 became quite popular due to its performance and affordable pricing structure, after which Superamerica became the most desired of all the Sports Cars. Any individual is first attracted by outer looks and then by its performance, same applies for cars too, so the designers and the manufacturers with a lot of hardwork and efforts introduced a car for racing against its competitors, this further triggered the development of cars for the next generation. It was a great risk to manufacture a speedy car with powerful engine with advanced technologies to improve its speed performance. Highly powerful engine with great speed was fixed into the light weight body of the car which was a great risk to the drivers as it needed to be handled most efficiently. Then came the thought for its safety where the designers worked hard and adopted certain modifications to set limitations on the speed and things like emergency brakes and suspension restrictions were added. However with the advanced technologies and great techniques a perfect sports car was ready on tracks. Day-by-day the possession for Sports Car has become a rising trend in the market. It may be due to one or all of the following reasons to drive a person to posses a Sports Car. – Its Fabulous Looks: The trendiest design of the Sports Car may e one of the reasons that more and more buyers are going crazy for it. – Functionality: Functionality and the car performance should be the most vital aspect to be considered while purchasing a Sports model. Sports Car is designed to give the best performance with regards to speed. Thus the experience a driver gets while driving a Sports Car is beyond words. – Pleasure and Thrill: Driving a Sports Car is an amazing feeling as it gives you immense pleasure and the thrill you are craving for. The fun while racing a Sports Car is just incomparable with racing any other car. – Status Symbol: Possessing a Sports Car often gives you an image of a high class status symbol, as it looks more of a luxury item than an automobile for transport. You seem to look like an adventurous personality who likes to explore new things. – Depreciation Value: Any car when purchased decreases in its value with increasing time period but surprisingly for Sports Car this is completely opposite, the value of the Sports Car increases with increasing time period! In simple words owning a sports car reflects the car owner’s personality and also shows how adventurous and trendy you are.

About the Author

Want to look trendy with a sports car, know more about the Sports Car and its amazing development at fast sports cars. Learn about car safety tips at thesupercars.org

Michael Gianaris Visits The UFCA
by Sam Goldman Assemblyman Michael Gianaris stopped by the United Forties Civic Association’s (UFCA) May 13 meeting at the St. Teresa Parish Center in Woodside to introduce himself to the residents he may represent in the State Senate next year. read more

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