Newsgroups: comp.robotics
Path: cantaloupe.srv.cs.cmu.edu!bb3.andrew.cmu.edu!nntp.sei.cmu.edu!news.psc.edu!uss.switch.com!news
From: Tom Maier <tam@rnd.switch.com>
Subject: Getting a robot into motion
Message-ID: <DBnKrt.DMq@switch.com>
Sender: news@switch.com (USENET News System)
Organization: Union Switch and Signal Inc.
Date: Thu, 13 Jul 1995 11:47:53 GMT
Lines: 12

OK, I *should* know how to figure this out but college physics was
just too long ago.

Given that a robot weighs, say 25 pounds, uses 4 inch tires, and has
a desired top speed of 1 mph (~1.5ft/sec), how big much power (torque ?) 
does the motor have to produce to accomplish this?

I'm not looking for the answer per se, I want to understand how to calculate 
it and what effects/information one has to know before the calculation
can be made.

Thanks in advance.
