is that not obvious? :)
at the high speeds they reach , they dont always have enough time to slow down by the end of the track. there's a limit to how much the brakes can do.
the paracute helps to slow them down.
droping parcles , food and soldiers and also first aid and that
No, they do not. Manual transmissions are used in Nascar race cars.
Usually they use synthetic race oil
slick tyres are used.
Street cars air (which is manily Oxygen, nitrogen), race cars nitrogen.
Fighter aircraft can stop on a short runway. On aircraft carriers, cables are used to stop them. Some fighters landing on short land runways use braking parachutes.
Very high compression race engines.
Yes. They use V8 engines
yes.
for racing cars titanium piston use.
AnswerYes.
Al the Apollo spacecrafts use three parachutes.