Quote:
Originally Posted by Hachiban VIII
Okay, so I think we all saw the demo where Dean and Dave race a 2 motor robot against a 4 motor robot and they reach the finish at the same time.
Having taken my fair share of physics I do not for the life of me understand how this is possible.
More force should equal greater acceleration, for the same mass. Correct?
They will reach the same speed, but the 4 motor bot will accelerate faster.
So did they reach the end at the same time simply because the 2-motor bot's lightness made up for its lack of power? 
After several transmission/motor swaps in '08 our team pretty much convinced ourselves that 4 motors was ALWAYS the way to go. |
4 motors can create more force, but the low friction wheels will spin before that additional force can be used to accelerate the robot, The acceleration is limited by the wheels, not the motors. I think that the 2 motor robot accelerated faster because of the gear ratios used.