Could be a worn CV joint
A seized gear can cause a knocking sound on a 1987 Nissan 5 speed transmission. A blown gasket can also cause this sound.
It is all about the nature. Temperature causes the sound speed.
the tires themselves.
My 2000 Grand Prix would have a low-speed knocking noise coming from the drivers side as the CV axle was failing. The loss of lubrication in the CV Boots allows the joint to make a knocking/tapping sound at a low speed. If the knocking is coming from the engine compartment, then it could be an entirely different problem.
Travelling faster than the speed of sound causes a loud noise called the sonic boom.
possibly hitting the front bumper
it sounds like a bad throw out bearing or clutch plate. not a major deal it just starts to get louder but eventually you going to have to replace it when you do your next clutch job. chris
No such thing as supersonic sound. Things can move with supersonic speed (fighter jets, ends of whips) making a shock wave, but the sound arrives at your ears at the speed of sound.
actually medium has amain role in the speed of sound, In air the sound can move faster while comparing to any other medium like liquid ,solid
that's due to Doppler effect. its the relative velocity between speed of the 'source and the receiver' and the speed of the sound that causes the effect... its just an illusion.
because the density of the medium changes with temprature
The speed of sound in a solid is faster than the speed of sound in air.