Why it is easier to hode a rod from its center than holding it at one end.
You can drag the hand (left-right) to change where you want to hold it.
And it will shows how much forces need to be applied to the rod at two sides of your hand.
The total weight of the rod is 20g.
Virtual Physics laboratory Original URL
Fu-Kwun Hwang, Dept. Of Physics, National Taiwan Normal University.