Quote:
Originally Posted by albertw
[I'm pretty sure we agree on the reality of what happens since I agree with everything you say about what actually happens. Then you get to the conclusion and it makes no sense to me. Perhaps the easiest way to illustrate that is to point out that a logical consequence of your statements is that when a car is travelling at a steady speed (static torque by your definition) there can be no energy transferred from the engine to the environment because there is no angular acceleration. That follows directly from your earlier statement that "static torque is just a specific case of dynamic torque where no work is done".
I'd love to have a vehicle that expends no energy when at a steady speed.
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Static torque is when there is no movement, not steady state movement. Any movement or acceleration of a vehicle from the engine will be due to dynamic torque produced by the engine. Unfortunately for some reason I wrote ‘angular acceleration’ when I meant ‘angular velocity’, otherwise everything else is correct. Bit tired tonight while time shifted a couple of time zones.