[EricH]

Originally Posted by feilmeier

2) By having a vertical fan pointing downwards, you simulate additional mass. This increases not traction, but weight. The mass of the robot stays the same, but the weight increases.


Thanks for listening to me. As you can see, I just finished a section on friction in my physics class.

Weight, when directed perpendicularly to a surface such as the ground, is also known as Normal Force for purposes of determining friction between an object and the surface. This increases the frictional force that is available, increasing the traction.