ElI5: how do the tank barriers (looks like large jacks) stop tanks? I see two people can carry them, can’t the tank push it out if the way?

Question

ElI5: how do the tank barriers (looks like large jacks) stop tanks? I see two people can carry them, can’t the tank push it out if the way?

In: 174

Answer 1

Must be a universal shape. You can make similar shaped objects out of nails that work on humans and tired vehicles.