posted by Ragib - March 15 2011 06:32:08 AM
we all know that anything that moves round at constant speed has acceleration as it changes direction,how can a fan move round at constant velocity?note,speed and velocity are not all the same.
Reply by Caprico - March 15 2011 10:50:38 AM
Umm... All fans move round at constant "angular" velocity at a particular setting... Nothing can move round with constant linear velocity... Am I right?

Reply by Ragib - March 15 2011 10:53:45 AM
no.always remember that there is no absolute thing in the universe.try again.i told velocity not angular velocity.

Reply by Caprico - March 16 2011 06:28:07 AM
Ohk... How about I sit on one end of the fan. Then for me, it would be going with constant velocity! :P Is that the answer you were looking for?

Reply by Ragib - March 16 2011 06:34:26 AM
something like that.two fans of same radius moving round the same axis have no velocity relative to each other.they both are moving but have constant zero relative velocity.

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