and you honk the horn, would you hear it?
2006-10-03 16:33:53 · 23 answers · asked by Boodie 5 in Science & Mathematics ➔ Physics
Assuming the sound travels only forwards, no. Now here's a more technical solution of why.
When an object travels at speeds faster or just at the speed of sound, a shock wave forms. When this object has a blunt "front", then what is called a normal shock is formed. This normal shock, as opposed to oblique shocks, will generally be so strong that the airflow behind it will be below the speed of sound.
Thus, your car horn will be behind this shockwave since it is in the engine compartment. This means that the airflow where the horn is located (on top of the airflow around you) is subsonic. Thus it if was facing away from you, you would not hear it.
Now in real life, the honk sound will not only go forward, but the vibrations will travel throughout the whole car just like it does when you honk while driving. Thus, in this respect you should hear it no matter what since the sound waves will travel through the body frame and vibrate the STILL air that is in your car cabin. However, i believe your question is pointing towards the case in which the sound only goes forward and none is transmitted back through the body.
With this consideration, no you will not hear it since the airflow behind the shockwave that will occur in front of your car will be subsonic.
2006-10-03 16:46:06 · answer #1 · answered by polloloco.rb67 4 · 1⤊ 0⤋
Speed Of Sound Car
2016-11-04 07:07:15 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Let me see now. You and I are in the car. We are on the way to the shore by the way- and you honk the horn. We are travelling at the same speed as sound
hmmm
yes
barring subsonics
2006-10-05 05:10:34 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Yes you would. When the horn is honked, the sound waves from it travel in all directions, not just forward so while the sound waves going away from you will never be heard, you will hear the sound waves coming toward you in half the time it would take to hear if your car was parked.
2006-10-03 16:45:39 · answer #4 · answered by Charlie 3 · 0⤊ 1⤋
Probably not. The honk of the horn is sound, and if you travel at the speed of sound, the sound waves produced by the horn would probably be neutralized by the speed of the car.
2006-10-03 16:41:53 · answer #5 · answered by brainster 2 · 0⤊ 2⤋
Since you would be moving at the speed of sound as well as the car your driving, and most cars have the horn in the front of the driver, Yes.
2006-10-03 16:37:17 · answer #6 · answered by Grev 4 · 3⤊ 0⤋
I think so.
I mean, the car's still moving, and so are you. The horn's attatched to the steering wheel, and you're right in front of it, so you should be able to hear it. Even if you are traveling at the speed of sound.
Oh, by the way, I've never taken physics. So, this is just me using my common sense.
2006-10-03 16:36:05 · answer #7 · answered by Lavina 4 · 2⤊ 0⤋
Yes, because sound travels in all directions from its source. Therefore, some sound waves would travel back toward you. However, due to the doppler effect you would hear the sound at a much higher pitch than it was actually generated. Since the waves are travelling back toward you at the speed of sound, and you are also travelling toward them at the speed of sound, their speed relative to you is twice their actual speed through air. Therefore their effective frequency is doubled, which would be perceived as an increase in pitch.
2006-10-03 16:45:02 · answer #8 · answered by PaulCyp 7 · 0⤊ 1⤋
the two autos are gonna be pulverized right into a haze of atoms very presently. there is not any way for the two to warn the different. Sound out of your horn can not attain the different vehicle in time because of the fact your mixed last velocity is plenty speedier than that of sound. think of roughly lightning and thunder and why you spot the lightning until now you pay attention the thunder. If the two autos have been heading in the direction of one yet another speedier than gentle velocity neither could see the different in any respect because of the fact the actual autos are outrunning their gentle. Now in case you desire to get genuine technical approximately the two autos shifting speedier than gentle the placement could be that the two autos could have countless mass (..each and every of the mass in the universe..) and it could have taken countless means (..each and every of the means in the universe..) to get them as much as their velocities. yet then we are left with the question of the place are we going to return up with any means to place into the collision in view that there is none left in the excellent universe. Spooky huh...?
2016-10-18 11:05:09 · answer #9 · answered by ? 4 · 0⤊ 0⤋
yes because you press the horn for a longer period of time and you are behind the horn so it will travel back to you.
2006-10-03 16:37:53 · answer #10 · answered by mozzy 4 · 1⤊ 1⤋