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 mass of the plank. If you can stand on the end of a plank that overhangs the edge of the supporting table 1/5 its total length, how massive is the plank compared to your mass?

A) 1/3
B) the same
C) 2/3
D) 1 and 1/3 times
E) more than 1 and 1/3 times