Torque for acceleration

[mark kibort <mkibort@xxxxxxxxxxxxxx>]

I generally get the impression that you get the concepts now, but looking=

below, be carefull
about the torque vs HP discussion.   at any speed , you need a certain
amount of torque to
accelerate an inertial mass.    that torque goes up as a function of spee=
d.
 The higher the speed,
the more torque needed to change the speed.   But , make no mistake, it i=
s
the torque that does the work.  At any speed.
HP , as was said so well by Bruce, is the resulant torque X the speed at
any particular point. =


Torque is nothing in the HP equation without Speed. HP is nothing without=

torque.   (ie 0 torque at 10,000 rpm is 0HP)
(But can be a whole lot of stored energy!!)

Mark Kibort
(www.electricsupercharger.com)
>>>>>>>>>>



 Response to Bruce
>I especially enjoyed the part where you went from work to torque. I foun=
d
it a nice puzzle. I finally felt I understood things again when I figured=

out that the power needed for a certain acceleration is dependent on spee=
d,
while the torque needed stays the same. The force that pushes the car, as=
 a
function of power, is:
<

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