It is a riddle.
It is the strongest force,
to resist your force,
and yet it is not a force.
It never accelerates,
but it is always moving.
It never rests, and
it never gets tired.
It has been defined many ways,
but no one can quite capture it.
What is it?

When the question mentions the word, accelerate, it should refer to the common term used in the dictionary instead of Scientific dictionary. 

I refer to the Webster dictionary, it gives the definition of increasing speed and moving faster. 

I too know that in Mathematics and Science, the word, acceleration, does use as a part of the computation of speed.

However, as nothing is mentioned in the question to define the question, acceleration, common definition in the Webster dictionary should apply.

Thanks.

Edited on April 29, 2005, 3:03 am

Posted by Jonathan Chang on 2005-04-29 02:59:29