- #1
pradeepk
- 19
- 0
In class the other day, my professor began talking about spools of wire on the rolling on the ground and when drawing their free body diagrams, he sometimes made the friction acting in the same direction as the motion of the spool. This really confused me, and I was just wondering if anyone could tell me, when friction acts in the same direction as the motion?
Thanks a lot.
Thanks a lot.