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# How to calculate the maximum acceleration that a tractor can achieve3

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

(OP)
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!!

### RE: How to calculate the maximum acceleration that a tractor can achieve

a=T/mr

Knowledge of speed limit unnecessary.

### RE: How to calculate the maximum acceleration that a tractor can achieve

Popping the clutch from a standstill with the engine at the governed limit will momentarily make it accelerate a lot faster than rated torque would indicate. Might even wheelie.

(I learned to drive on a tractor ...)

### RE: How to calculate the maximum acceleration that a tractor can achieve

Highest acceleration would be a 40->0 stop in a short distance. Like within in the length of the vehicle.

Steve

### RE: How to calculate the maximum acceleration that a tractor can achieve

Or ramming it into a solid metal wall... acceleration will be whatever you can get from deformation of a metal tractor @ 40km/hr.

Dan - Owner
http://www.Hi-TecDesigns.com

### RE: How to calculate the maximum acceleration that a tractor can achieve

OK, so what is the purpose of your OP?

### RE: How to calculate the maximum acceleration that a tractor can achieve

That's easy. Strap a few JATOs on it; that's how the U2 takes off. I think Mythbusters used such a scheme to find out if a car could be launched into crashing to the side of a mountain.

TTFN
I can do absolutely anything. I'm an expert!
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers

### RE: How to calculate the maximum acceleration that a tractor can achieve

The tractor can accelerate a towed load pretty smartly if you start with a lot of slack in the sturdy chain connecting them.

Mike Halloran
Pembroke Pines, FL, USA

### RE: How to calculate the maximum acceleration that a tractor can achieve

Max acceleration of 32 ft/sec^2 when driven off a cliff.

### RE: How to calculate the maximum acceleration that a tractor can achieve

That's Deceleration .
B.E.

You are judged not by what you know, but by what you can do.

### RE: How to calculate the maximum acceleration that a tractor can achieve

Acceleration is normally a vector. Doesn't have a sign

Steve

### RE: How to calculate the maximum acceleration that a tractor can achieve

Tell that to the tractor that came to a sudden stop

Dan - Owner
http://www.Hi-TecDesigns.com

### RE: How to calculate the maximum acceleration that a tractor can achieve

F = m*a

Figure out how much force (torque) the engine produces, Figure out the mass you're accelerating, and then the question remains basic as you solve for acceleration.

Don't forget to know the moment of inertia of drivetrain, how much friction you're dealing with, wind drag, and the fact that you would need a fictional transmission.

### RE: How to calculate the maximum acceleration that a tractor can achieve

Another good way to do it is put an accelerometer in the tractor, and then accelerate as fast as you can.

The first option I have you is somewhat like how an engineer would solve it.

The second answer is what the engineering technician would do when the engineer wants the actual answer ;p

### RE: How to calculate the maximum acceleration that a tractor can achieve

Original poster is nowhere to be found.

### RE: How to calculate the maximum acceleration that a tractor can achieve

I think he got sucked into a black hole. Calculate that acceleration.

----------------------------------------

The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

### RE: How to calculate the maximum acceleration that a tractor can achieve

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

### RE: How to calculate the maximum acceleration that a tractor can achieve

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

TTFN
I can do absolutely anything. I'm an expert!
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers

### RE: How to calculate the maximum acceleration that a tractor can achieve

So at earth radius it's 1g?

je suis charlie

### RE: How to calculate the maximum acceleration that a tractor can achieve

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

### RE: How to calculate the maximum acceleration that a tractor can achieve

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 697,8222 = 0.486 E12 g not 7.18 E14.

I get 238 mm radius for 7.18 E14 g.

je suis charlie

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