Rollover

Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Rollover shopping experience:

1. Compare - without doubt the biggest advantage that the Rollover offers shoppers today is the ability to compare thousands of Rollover at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.

2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about

3. Testimonials - don't know anybody that has bought a Rollover? Wrong! If the Rollover is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.

4. Questions - Got a question about Rollover then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....

5. Reputation - Never heard of the company selling Rollover? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Rollover and build up a picture of their reputation for sales, returns, customer service, delivery etc.

6. Returns - still worried that even after all of the above your Rollover wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.

7. Feedback - happy with your Rollover then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.

8. Security - check for the yellow padlock on the Rollover site before you buy, and the s after http:/ /i.e. https:// = a secure site

9. Contact - got a question about Rollover, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.

10. Payment - ready to pay for your Rollover, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.

, Australia on Christmas day, 2001.Rollover is a type of car accident, where a vehicle turns over on its side or roof. The main cause for rolling over is turning too sharply while moving too fast.

Dynamics .The force of inertia (acting in the direction opposite to the one it is turning) is combined with the force of gravity (acting downwards). When the combined force as applied to the centre of vehicle's mass falls outside of the rectangle formed by the wheels, the vehicle starts to turn over. A rollover can also occur as a vehicle crosses a ditch or barrier rather than a flat road surface. Such an event can be triggered by a sudden turn to avoid a collision, or a loss of traction due to water or ice.

Competition A skilled driver may stop the fall by stopping the turn. Stunt drivers in competition deliberately use ramps to launch a car, often a short, stubby subcompact which is more easily turned over. Short of a rollover, stunt drivers may also drive the car on two wheels for some time, but this requires precise planning, control and specialized safety equipment.

Cars and SUVs (see Firestone and Ford tire controversy)All cars are susceptible to rollovers to various extents. Generally, the higher the centre of mass is located, the higher the vehicle is and the faster it goes, the more likely it is to roll over. Civilian SUVs are particularly notorious for rolling over because they often have a higher center of gravity due to raising the suspension to accommodate 4 wheel drive. Among the vehicles which have received publicity for rolling over are the Ford Bronco II, Suzuki Samurai, Jeep CJ, Ford E-Series and Isuzu Trooper, though NHTSA investigations have not found evidence of excessive risk compared to other similar vehicles.

HMMWVs are much wider than civilian SUVs. While more difficult to tip over deliberately, many American casualties in Occupation of Iraq are caused by rollovers, with the turret gunner being particularly vulnerable in an accident. "Iraq rollover kills Oregon soldier" Oregonian May 25, 2005 by MIKE FRANCIS Military jeeps with independent suspensions were prone to rollover, and not sold to civilians for this reason.Trucks can often roll over when doing sharp turns and trains can roll over after derailing.

Some four wheel drive pickup trucks have reduced steering capacity to prevent rollover. This creates problems with parking and negotiating very sharp curves. 15 passenger vans, which have raised heavy-duty suspensions and a heavy load of passengers are also prone to rollover. It is recommended to not load anything on the roof of such vans, and to use drivers trained to avoid sudden maneuvers.

A vehicle may roll over for other reasons, for example when hitting a large obstacle with one of its wheels, when manoeuvring over uneven terrain, etc.

Exit After the rollover the vehicle may end up lying on the side or on the roof, often blocking the doors and complicating the terrifying escape for the passengers. Large passenger vehicles such as buses, trams and trolleybuses that have doors on one side only usually have special windows with handles to pull to use the window as an emergency exit or glaziers fixed near the windows for cutting the glass and making an improvised exit in case of a rollover. Some have emergency exits in their roofs.

Roll bars and cages Rollover crashes are particularly deadly for the occupants of the vehicle when compared to frontal, side or rear crashes, because in normal passenger vehicles, the roof is likely to collapse in to the occupants and cause severe head injuries for them. The use of roll cages in vehicles would make them much safer, but in most passenger vehicles their use would cut cargo and passenger space so much that their use is not possible. The Jeep Wrangler, a vehicle which is short, narrow, and designed to be used on uneven terrain, is unusual in that it comes equipped with a roll bar as standard.

The decline in popularity of convertibles was due in part due to concern over rollover accidents, as most convertibles have no protection beyond the windshield frame. Removable roof panels provide an open roof with a roof frame. Some convertible vehicles provide rollover protection as two small bars behind the headrests. Some Mercedes-Benz convertibles have a retractable roll bar which deploys in case of an accident. Race cars almost always have roll cages, since they are likely to roll over while driven at very high speeds and through sharp corners, and the roll cage's chassis-stiffening effect is usually positive.

References External links

DOT rollover ratings by vehicle type (NHTSA)
The center for auto safety videos (Rollover videos at the bottom)..
Rollover Training, FA Style (parody WMA video clip)