"dennis@home" wrote in message
eb.com...
On 07/04/2016 10:19, michael adams wrote:

Given that torque is the power transmitted via the drive axle which causes the
wheels to rotate, its difficult to see what's wrong with his claim, quite honestly.

Energy of moving object = mass x velocity squared.

If you want it to go faster you have to input energy.

Yes.


If the energy source has higher output at high revs you have more to put in.


Yes.

In a car this quite often means changing gear and possible slipping the clutch and is
therefore a dynamic system and not a static one like having an engine running at one
speed at maximum torque.

See its easy to argue.

Only if you choose to deliberately conflate engine torque, which is
presumably measured at the flywheel, with driven axle torque which
actually turns the wheels.

I'm not concerned about the engine.

For the wheels to be turning or accelerating fastest -
in the absence of the car being powered by external
factors such as the wind propelling the body, they
need to be subject to the maximum available torque.

Quite how it got there, is an entirely different question.


michael adams

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