I try to explain how to get a mechanical advantage of 5:1 and 9:1 by arranging a rope and pulleys. I pull a truck that is stuck in Florida sugar sand out by hand. I also show how to tie a bowline knot.
![Mechanical Advantage Using a Rope and Pulleys for Vehicle Recovery 9:1](http://shipping-container-homes.org/wp-content/uploads/mechanical-advantage-using-a-rop.jpg)
I try to explain how to get a mechanical advantage of 5:1 and 9:1 by arranging a rope and pulleys. I pull a truck that is stuck in Florida sugar sand out by hand. I also show how to tie a bowline knot.