Re: acceleration

[G.Lambert@unsw.edu.au (Geoff Lambert)]

On Mon, 8 May 2000 16:42:59 +1000, "Hubert Lam" <hubert@imap4.com>
wrote:

>>
>> Acceleration = r * omega^2
>
>Of course that is centripetal acceleration, i.e. direction of this is towards the centre of the
>circle. the linear acceleration is a tangent to the circle at the point that where the object is
>undergoing circular motion.
>
>>
>> Where r = radius
>> omega = the rotational speed.
>
>omega to be more technical is the "angular velocity". in HSC Physics the direction is whichever way
>around the circle (i.e clockwise/anti clockwise)
>
>PS. geoff (lambert) do you happen to teach physics???
>

No, but I learned it to tertiary level.  I even know about the
difference between speed and velocity, but like the difficulty of
posting things with equation editor in newsgroups, some things can be
glossed over on aus.rail.

GL