Recent content by Physic_fan

f_r mg thanks for all, but at the end can you explain the components of above formula, and where they come from?

F_r = F_{rr} + F_{rf} = f_r mg

Hi, I have a question about one of my project involved 2electrical motors that I have to size to accelerate a Robot on robber wheels. there are a lot of confusing stuff in the internet that make me give up.:( so here it is: the weight of Robot is 10 kg, standing on two legs that has 2 robber...