Mountain Bike Parts

Going on a Road Trip?

Traveling by land does have its advantages – you can go as fast or as slow as you like, choose your mode of transportation (car, trains or bus) and enjoy the view. You can’t really do that from an airplane or a cruise ship. So is last minute travel by land making you break out into sweat and causing panic attack? It doesn’t have to. Here are tips you can use:

Get a map.
Never leave home without it. Other than a water bottle and a reliable car, a good road map is your best friend when traveling last minute by land. Choose a motorist’s map because it has more detailed information about the roads and highways you might have to use. 

If you have time, try to study the map and mark your current location and your destination. Look at the route you want to take and try to check alternate routes as well. You never know if there’s a traffic jam or construction work somewhere.

While you’re at it, try to check for local accommodations, gas stations, restaurants, hospitals or clinics along the way. That should give you sufficient information on the most basic things – where to get gas, where to eat, go to the bathroom, sleep or your tires checked. That way, you’ll be able to plan your trip accordingly.

Pack up the necessities.
Bring only the things you will truly need on this trip, although if you’ll be traveling by car, you probably can pretty much bring just about anything that will fit in your trunk or backseat. If you’re traveling by public transportation, make sure to bring only the necessary stuff. That will help keep you mobile so you can move around fast.

Check your car.
Never go on a last minute travelby land without having your car checked. Don’t leave anything to chance.Therefore maybe the next servicing centre or gas station is just 10 miles away. What if your car breaks down – are you willing to walk/hitch the rest of the way just to get your car checked? Make sure everything is in order before you even leave your driveway.

Stop and get your bearings.
Last minute trips can be forever trips if you get lost. If you covered a long distance towards your destination, stop to check out that whether you are going in the right direction or following the correct path. Use landmarks and street signs to determine your exact location. Got a GPRS? Use it.

Going public? Confirm your tickets.
If you’ll be taking your last minute travel by land on a public transportation, make sure to get your tickets ahead of time. You could queue, of course but if you want to make sure you travel faster, have your tickets on hand.

Have cash on hand.
Not every destination you arrive at might have an ATM or a bank. In case you need cash fast, at least you have something in your wallet, bag or pocket. If you’re traveling by land at the last minute, make sure you have cash in change — $1, $5, $10 and $20 bills, along with loose change in coins. So in case you find a hotel, inn or restaurant that will only take cash, you’re ready.

Plus, you never know if you’ll have to make a call from a telephone booth. After all, there are still areas where mobile phones won’t work.

What is the area of contact each tire makes with the road?

The weight of your 1410 kg car is supported equally by its four tires, each inflated to a gauge pressure of 33.0 lb/in^2

What is the area of contact each tire makes with the road?

What gauge pressure(P=lb/in^2) is required to give an area of contact of 107 cm^2 for each tire?

Since this sounds like a homework problem, I’m not going to give you the answer.

Assuming even weight distribution (most cars are front heavy) and neglecting any contribution by the stiffness of the tire itself, the contact patch is equal to the weight on the tire divided by the air pressure.

Remember that weight is not equal to mass, and pay attention to your unit conversions.