yaa new visual

yasa-new-camp


Snowmobiles and Youth
Study reveals which car crash avoidance technology can be a proven lifesaver
Preparing your home for an emergency
15 Safety Tips for Holiday Travelers This Christmas

March15,2013 Global status report on road safety 

 AT&T Don't Text While Driving Documentary ( Video Inside) 

YASA & Sagesse High School Mall Demonstration ( NICE SHORT VIDEO INSIDE)

YASA and LASIP advice to avoid the increase of injuries resulting from road collisions on New Year’s Eve 

Make sure that the mattress is comfortable, suitable and properly fit in the child bed.




 
User Name:
 
Password:
 
Forgot your password?
New to YASA? It's free and easy.
Create an account
Yasa visiting Chmistar- Bekaa, Lebanon. Yasa Conference in collaboration with Renault at Sagesse Ain El Remmeneh Yasa Conference for Civil Defense at Dbayeh Car Crash simulation at AUST university-Achrafieh Brasilia Declaration on Road Safety Yasa and Lassa Conference at the Evengelical Arminian school at Ashrafieh Yasa Conference at LIU rayak Yasa Conference at Balamand-Akkar Up to 27 seconds of inattention after using car's voice commands: studies Yasa Conference for the teachers at Dar Anout Driverless buses being tested in Greece New safety technology leaves some drivers confused Mother of 3 children killed in Vaughan crash Yasa Conference for the chorus of the Lady's rosary camp Ghadir Yasa & Renault Conference in Broummana- Saint Isaiah Monastery Yasa Conference in Akroum Mountain to Al Bayan association What's The Number One Reason People Die Early in Your Country? Americans less satisfied with cars than any time since 2004 Yasa Conference in Ibl El Saki in corporation with the Parish of Saint Georgios Fiat Chrysler recalls more than 85,000 Chrysler 200 sedans New technology will tell drivers when traffic lights change Conference at the association of the Bishop Hanna Tire Pressure and Loading Limits Variable Ride-Height Types of Car Seats Blind drivers go behind the wheel at Spanish racetrack THE NEW SYSTEM OF ROAD TRAFIC MANAGEMENT. Calls for Irish cars to have devices to prevent drink driving London clamps down on dangerous trucks Motorcycle safety the responsibility of riders and drivers Robot kills worker at Volkswagen plant in Germany Former ISU basketball player Jackson Vroman found dead at Calif. home Bus crash in Belgium kills one; UK students all survive Vehicle quality improves overall, but Japanese brands fall behind: J.D. Power Obama proposes tougher mileage standards for heavy-duty trucks The truth about Lebanon’s speed cameras Traffic safety Day at Saint Joseph School Traffic safety Day at Amjad deir Oubil Takata recalls nearly 34M air bags; largest auto recall in U.S. history China: Luxury cars wrecked in 'Fast and Furious' collision Passenger killed in Lamborghini crash at Disney racetrack 'driving experience' Qataris spend millions on 'fancy' licence plates Michael Schumacher Update & Latest News: F1 Racer May Not Return to Normal? DON’T DRINK AND DRIVE TAKE A TAXI TO SURVIVE Mercedes recalling 30,000 cars to fix rear tail lamp problem Canadian soldier, wife, 7-month-old baby killed in U.S. crash Crash car in Ferzoul Bekaa New P.E.I. licence plate in running for best in North America Why Sweden has so few road deaths 96 vehicles involved in collision after 'wall of snow' hits Highway 400 Doctors tell Michael Schumacher's family that 'only a miracle' can save him Man killed while trying to help roll-over victim on Highway 400 Police investigate fatal crash east of city Chris Kattan charged with DUI after freeway crash Busiest speed-on-green camera caught more than 28,000 drivers in 2013 Tests continue for drunk driver charged after allegedly entering liquor store Britain braced for NEW Atlantic storm think twice before you scare someone to DEATH Man hit by train in downtown core Two people dead in Brampton collision Parents of teen killed by drunk driver fight to prevent another tragedy Police hunt hit-and-run driver who left dog walker lying unconscious on the pavement ISF member killed after hitting stray donkey in Safra Japan chemical factory explosion (Mitsubishi) kills at least five Three killed, four injured in Alberta crash 3 Syrian nationals injured in car accident in Tripoli Firefighter finds his daughter dying in crash on Christmas Eve Genting Bus Crash: Worst Tragedy In 2013 Two women extricated from wreckage after car strikes CTrain New Brunswick town grieving loss of 4 teenagers killed in highway crash Unknown car hits and kills Syrian national in Halat RCMP investigate after teen hit in central Alberta Saturday morning snow wreaks havoc on Alberta’s highways Family struggles with loss after alleged impaired driving collision claims Edmonton man Man critically injured after being struck by TTC bus Bus crashes, catches fire in southern India; 45 passengers killed SUV veers into crowd at Beijing's Forbidden City; police say 5 killed, dozens hurt Official: 3 children die in Bronx fire after candle lit Woman in custody in connection to fatal hit and run Sean Edwards killed in Australian crash Police identify 2 Ontario boys killed while crossing street Two Ontario boys killed after being struck by vehicle Man dead after being struck by vehicle in North York. Mexican monster truck kills 8, hurts dozens when vehicle hits crowd. Launch of pilot project in Tunisia. America: Driver dead after car chase from White House to Capitol ends in police gunfire.
Print
The Car and The Wall

The Car and The Wall

According to Newton's first law, an object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. It is the natural tendency of objects to keep on doing what they're doing. All objects resist changes in their state of motion. In the absence of an unbalanced force, an object in motion will maintain its state of motion. This is often called the law of inertia.

The law of inertia is most commonly experienced when riding in cars and trucks. In fact, the tendency of moving objects to continue in motion is a common cause of a variety of transportation injuries - of both small and large magnitudes. Consider for instance the unfortunate collision of a car with a wall. Upon contact with the wall, an unbalanced force acts upon the car to abruptly decelerate it to rest. Any passengers in the car will also be decelerated to rest if they are strapped to the car by seat belts. Being strapped tightly to the car, the passengers share the same state of motion as the car. As the car accelerates, the passengers accelerate with it; as the car decelerates, the passengers decelerate with it; and as the car maintains a constant speed, the passengers maintain a constant speed as well.

But what would happen if the passengers were not wearing the seat belt? What motion would the passengers undergo if they failed to use their seat belts and the car were brought to a sudden and abrupt halt by a collision with a wall? Were this scenario to occur, the passengers would no longer share the same state of motion as the car. The use of the seat belt assures that the forces necessary for accelerated and decelerated motion exist. Yet, if the seat belt is not used, the passengers are more likely to maintain its state of motion. The animation below depicts this scenario.

If the car were to abruptly stop and the seat belts were not being worn, then the passengers in motion would continue in motion. Assuming a negligible amount of friction between the passengers and the seats, the passengers would likely be propelled from the car and be hurled into the air. Once they leave the car, the passengers becomes projectiles and continue in projectile-like motion.

Now perhaps you will be convince of the need to wear your seat belt. Remember it's the law - the law of inertia

Global , Others

Date: 1/14/2014 8:30:31 AM

By: YASA WEB , www.physicsclassroom.com
 
Add Comments 
Name
Email
Comments
Add Comments
YASA.org reserves the right to exclude postings that contain insults, bigotry, sexism, racism and other expressions deemed to fall outside the bounds of decency. All opinions expressed are those of the individual poster and do not represent the views of YASA.org or its staff.
Comments 
Number Of Comments (0)
Others