How powerful must be a sneeze for Covid19 to reach escape velocity?
How fast does a sneeze travel? How fast is escape velocity on Earth?
Does it change if the virus is spead by the air?
Humor and serious answers welcome.
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9 Answers
No. Just think about it. If you cannot buy a gun that can propel a bullet to escape velocity, what pair of lungs do you suppose can hurl ANYTHING beyond the pull of the earth. You can easily google both the escape velocity for our planet as well as the force of a sneeze. Then consider the fact of our atmosphere, and the simple fact of what happens if you sneeze into a fan or any wind blowing in your face. If you cannot force a breath through a humble opposing window fan, what chance that your sneeze might leave you at orbital velocity or beyond, as well as battle our atmosphere snd maintain its momentum?
Ok I will do the work. Sneezes travel at 100 miles and hour. 11.2 km per second is the earths escape velocity. Converting is
40,320 miles per hour. Or 403.2 times a normal sneeze.
So a sneeze can’t leave the Earth on its own.
I think the escape velocity is something ridiculous like 17,000 miles an hour.
I love my ti-85 graphics calculator. Still usefull out of high school. Math is used out of school.
Escape velocity is 672 km a hour or 417 miles a hour.
That is a routine speed for an airliner. You are off by a couple orders of magnitude.
Decimal points matter.
@zenvelo 41,000 km/h. Or 25,000 miles/h . I hope it is correct. This time.
11.186 kilometers/second
6.915 miles/second
or
40,270 kilometers/hour
25,020 miles/hour
Yeah, no set of lungs on Earth is going to reach that mark.
Also remember that air resistance will immediately decelerate the particles, so the initial velocity will have to be much higher to account for this so the final velocity after taking air resistance into account is still at escape velocity. I think the initial velocity would have to be something insane, like the kind of thing that would generate thermonuclear bomb-type heat from air friction or something. I’m sure your lungs would explode from the trauma or something like that. I’m not a physicist or a MD.
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