Thread: HP to Kw - HELP

Thank everyone for your input but....

ENOUGH!!!!

So the Merc Jeremy drove with 550hp has 412 kw....... makes the V8 supercars look pretty ordinary...at least the road versions

Originally Posted by p38arover

Algebra and geometry are useful. I used them a lot after I left school - no, I'm not a surveyor, I'm an electronics tech.

Calculus is a waste of time at school - teach it in Uni.

Calculus was Useless at Uni too

Originally Posted by Blknight.aus

calculus...

conversions, loadings, reduction factors..

navigations, dive times, rate changes, mixture compensations.

factoring distance to go vs fuel available and consumption rate to determin the optimal burn rate to get to the destination at the quickest speed without having to stop for fuel OR what speeds to do what legs to make what servos.

if your serious about what you landrover can get you to then its a nice to have.

Or just refer to the in-car computer for range to empty in a D3.

he he he....

Originally Posted by moose

Since we're off topic anyway, I hated calculus and it hated me. Can I ask what on earth it's used for in everyday applications? (apart from to teach to kids)

It's used to give these sort of results:
Area under a curve.
Length of a curve.
Slope of a line.
Point of inflexion (where a line straightens out between two curves).
Radius of curvature.
Volume enclosed.
Volume excluded.
Predicting stress, strain or deflection at a particular point.
Predicting the amount of damping you need to stabilise something.
Predicting the behaviour of oscillating systems.

You may ask, "why not just measure these things"?
The answer is, because building a machine, device or full size model just to test or measure something like this is very expensive and time consuming. If you can do the maths correctly then you've got not only a good prediction, but also a good idea of how accurate that prediction can be.

That's how we engineers earn our keep.

Originally Posted by beforethevision

That might be why government work seems a little 'out' on occasions. Maybe 1hp=3/4 kw instead of 4/3??

hahah

Cheers!

100kw = 135 horsepower. Divide kw by 3 and multiply by 4. That example is an MV Agusta Evo.

Originally Posted by Dougal

It's used to give these sort of results:
Area under a curve.
Length of a curve.
Slope of a line.
Point of inflexion (where a line straightens out between two curves).
Radius of curvature.
Volume enclosed.
Volume excluded.
Predicting stress, strain or deflection at a particular point.
Predicting the amount of damping you need to stabilise something.
Predicting the behaviour of oscillating systems.

You may ask, "why not just measure these things"?
The answer is, because building a machine, device or full size model just to test or measure something like this is very expensive and time consuming. If you can do the maths correctly then you've got not only a good prediction, but also a good idea of how accurate that prediction can be.

That's how we engineers earn our keep.

I loved calculus at school - but I still think it's a Uni subject. We had to study a bit more of it at Tech when I was doing my electronics course.

Now I remember practically nowt of it!

Originally Posted by Dougal

If you need calculus at uni, then it's far too late to be starting to learn it.

Dunno. We weren't taught it until Year 11.