Thank you for your responses.
Let's forget the case of walking/running and back up to the case of a leaning pencil. You have a brand new pencil and stand it on end; if on a level surface and vertical it will stay there. See position A in the attached diagram.
- You take your finger and move...
ehild,
Thank you for your response.
I don't follow you. The force of friction acts on the base of the column which is stationary (velocity=0) as the column's COM falls forward (velocity > 0). If the base of the column is not moving, how can friction F(f) be moving the column forward...
This is a self-study homework problem. I am trying to verify the "falling column physics" associated with leaning forward with our center of mass in front of our feet.
Homework Statement
Describe the free body diagram for a column (tree, pencil, person) leaning from vertical. Assume there...