How to calculate the maximum acceleration that a tractor can achieve 3

[Explorer8888]

Generally, agricultural tractors have a speed limit of 40 Km/hr. Is there a way to calculate the maximum acceleration that tractors can reach keeping the maximum speed limit into consideration!!

 

[IRstuff]

OK, for an Earth-mass black hole, the gravity at the event horizon is 5.17E17 g's

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[MacGyverS2000]

Now you have me wondering what the size of the singularity is for an Earth-mass... does that even make sense, since an Earth-mass wouldn't, by itself, sink into a singularity?

Dan - Owner

http://www.Hi-TecDesigns.com

 

[IRstuff]

It wouldn't turn into a singularity on its own, but it's theoretically possible to have a black hole with Earth mass. The Schwarzschild radius is admittedly small, about 88 mm. If we allow a reasonable distance, say, 30 ft, it drops down to 7.1825*10^14 g's

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[gruntguru]

So at earth radius it's 1g?

je suis charlie

 

[GregLocock]

I should hope so!

Cheers

Greg Locock


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[IRstuff]

Don't forget that Earth radius is 6378.1 km, and g is inversely proportional to the square of the radius.

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I can do absolutely anything. I'm an expert!
faq731-376 forum1529

 

[MacGyverS2000]

What distance would the event horizon be for such a singularity? My first guess is there wouldn't be one since there's not enough mass...

Dan - Owner

http://www.Hi-TecDesigns.com

 

[gruntguru]

Someone's figures don't add up. Going from 1 g at 6378.1 km to a radius of 0.00914 km (30'), I get 697,822[sup]2[/sup] = 0.486 E12 g not 7.18 E14.

I get 238 mm radius for 7.18 E14 g.

je suis charlie

 

[IRstuff]

oops, looks like I entered 8.87mm instead of 88.7mm the first time around, which propagated to the second time.

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