How much weight do you need for a human to sink fast into the water and not able to escape?

Let's say your hands and legs are tied up, and you tie your body with a bag filled with weight lifting weights, how many weight approx would it take for a person to sink into the water quickly?

The human weight is 140pounds and 6 feet tall if that matters.

This entry was posted on Friday, April 6th, 2012 at 5:55 pm and is filed under Sink. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.