You Can Safely Stand on the Overhanging End of a Heavy

Multiple Choice

You can safely stand on the overhanging end of a heavy plank that rests on a table. How much overhang depends on your mass and the plank's mass. If you can stand on the end of a plank that overhangs the edge of the supporting table 1/4 its total length, how massive is the plank compared to your mass?

A) 1/2
B) the same
C) 1 and 1/2 times
D) twice
E) 4 times