Probably because it has a leak. That could be from a number of sources, including punctures of the tread or sidewall, compromised valve stem or valve core, or a bent rim breaking the bead.
Check it. If flat, replace. If not, keep driving till it does.
A flat tire spins faster for a couple of reasons. This could happen because there is no force holding it back. A soft or flat tire has a smaller circumference which forces the tire to spin faster to keep up the same speed.
Of course you can, if you are a total nutcase...
The first thing to do is pull over immediately in a safe place if you are driving. You should then get out your car jack and spare tire and change the flat. It's always good to keep a can of Fix A Flat with you also for quick fixes.
It loses air, generally going flat.
No, once it has a flat spot it will always have a flat spot. Replace the tire.
jack flat tire hammer
A full tire is heavier than a flat tire. When a they are both flat they weigh the same but added air makes the full tire heavier.
a bus that has a flat tire at top speed going down a monkey with a fancy hat
To repair a flat tire you first need to remove the tire from the rim. Once removed inspect the tire for the damager and repair the puncture.
A flat tire can lead to reduced tread wear and sometimes blowouts.
Depends; Are You Going To Just Remove The Tire From The Vehicle Or Remove The Tire From The Wheel. If Just Removing The Tire From The Vehicle Yes Do This As You Would Change A Flat. To Replace The Tire Or Tires. You Will Need To Remove The Tire Or Tires & Have New Tires Installed At A Tire Shop. Sears, Wal-Mart, Ect. Good Luck