I need two motors powerful enough to accelerate a 200 lbs robot at 10 ft/s^2. From doing the calculations, I know I am looking for a two 430 watt motors. I found the Falcon 500 motor on vex robotics website. But those motors are only 3 inches in length and weigh 1 pound. They are advertised to be able to provide the necessary 430 watts, but it is extremely hard to believe this due to its small frame and weight.
If anyone has had first hand experience with the Falcon 500 and used them to power and maneuver heavy robots, please tell me if two falcon 500 motors would be sufficient for this project.