One of you physicists

[The Stranger:Me]

i found this bit 87kw = 116.67 hp
167Nm = 123.16 foot pounds
nowt about the rpm bit, maybe it means that is its peak output

Peak power is developed at 5,500 rpm
Peak torque is developed at 4,000 rpm

[peasea]

i found this bit 87kw = 116.67 hp
167Nm = 123.16 foot pounds
nowt about the rpm bit, maybe it means that is its peak output

Foot pounds?
Pounds feet.


"To calculate torque, you just multiply the force by the distance from the center. In the case of a large nut, if the spanner you use is a foot long, and you put 200 pounds of force on it, you are generating 200 pounds-feet of torque. If you use a 2-foot spanner, you only need to put 100 pounds of force on it to generate the same torque."

Pounds feet..........

[Forest]

Foot pounds?
Pounds feet.


"To calculate torque, you just multiply the force by the distance from the center. In the case of a large nut, if the spanner you use is a foot long, and you put 200 pounds of force on it, you are generating 200 pounds-feet of torque. If you use a 2-foot spanner, you only need to put 100 pounds of force on it to generate the same torque."

Pounds feet..........

Multiplication is a commutative operation.

distance x force = force x distance

[dipshit]

Funny how the yanks spank on endlessly about that road and it looks pretty much like ordinary sports riding around here.

Americans spank on endlessly about anything American. That's why they are called 'Yanks'.

[Big Dave]

Americans spank on endlessly about anything American. That's why they are called 'Yanks'.

I haven't sought any olympic coverage yet dippy - but what I haven't been able to avoid has featured absurd breast beating histrionics - both in meat and cyberspace.

The only thing worse than a bad loser is a bad winner.

I was ashamed of some members of the Australian Cricket team for a while - because they had become such bad and snarley winners. Of course the whiney Indians still say they are.

However they don't hold a candle to Oncle Sam's kiddies.

You ever watch college sport? When they hold the camera in the crowd. Scary shit.

[scracha]

Max. Power Output 87kW /5,500 rpm
Max. Torque 167Nm/4,000 rpm

convert that to old-speak for me please.

Is this a hardware or a software problem.

Sorry...that's mechanical engineering not physics.

[Big Dave]

Is this a hardware or a software problem.

Sorry...that's mechanical engineering not physics.

Complicated by semantics.

My OS dictionary says

physics |ˈfiziks|
plural noun [treated as sing. ]
the branch of science concerned with the nature and properties of matter and energy.

The quantification of power output would qualify surely?

[Ocean1]

Foot pounds?
Pounds feet.


"To calculate torque, you just multiply the force by the distance from the center. In the case of a large nut, if the spanner you use is a foot long, and you put 200 pounds of force on it, you are generating 200 pounds-feet of torque. If you use a 2-foot spanner, you only need to put 100 pounds of force on it to generate the same torque."

Pounds feet..........

Multiplication is a commutative operation.

distance x force = force x distance

Pounds Foot if you please.

The variable is pounds, not feet, there's no provision in the standard unit for more than one of 'em.

Ffs, next it'll be "foots".

[peasea]

Multiplication is a commutative operation.

distance x force = force x distance

Fine, but it's still pounds feet. (Foot, whatever, but POUNDS come(s) first.

[peasea]

Pounds Foot if you please.

The variable is pounds, not feet, there's no provision in the standard unit for more than one of 'em.

Ffs, next it'll be "foots".

Or peet founds, perhaps?

Now, let's go metric, shall we?
Mewton Netres.

[scracha]

Complicated by semantics.

My OS dictionary says

physics |ˈfiziks|
plural noun [treated as sing. ]
the branch of science concerned with the nature and properties of matter and energy.

The quantification of power output would qualify surely?

Nature, properties of matter and energy. Umm...so that's basically the building blocks of the whole universe. Glad I switched to Computer Science after a couple of years, otherwise I'd have to solve everyone's problems.

Anyway, real scientists scoff at people not using the metric system.

[Ocean1]

Glad I switched to Computer Science after a couple of years

Probably wouldn't be difficult to find a physicist or two quite chuffed about it too.

Anyway, real scientists scoff at people not using the metric system.

Fuck ‘em. I’ve got a good handle on what a pound does on the end of a foot long lever. Fuck knows what a Newton is…

[scracha]

Probably wouldn't be difficult to find a physicist or two quite chuffed about it too.

Fuck yeah...brainy dudes mate. By the 2nd year I'd had more mathematics than I could handle.

[Mikkel]

Multiplication is a commutative operation.

distance x force = force x distance

While multiplication may be commutative - the vector product (x) is not.

In this case - distance (taken from the centre to the circumference) and force being vectors - the following is true:

distance x force = -force x distance

Not to throw a spanner in the works - but one valid objection towards the Imperial (lb-ft) units compared to metric (Nm) units is the fact that if the gravitational acceleration changes between to locations the Imperial unit changes - where as the metric unit will remain constant.
As such I couldn't possibly care one way or the other if you want to call it foot-pounds or pounds-foot... they are both obsolete. Newton-meter is the unit I'll stick to.

[Ocean1]

one valid objection towards the Imperial (lb-ft) units compared to metric (Nm) units is the fact that if the gravitational acceleration changes between to locations the Imperial unit changes

Except lbs/ft ain't correct.

Might be common shorthand, but the proper unit is lbf·ft