Why can’t a bullet proof vest protect you from a knife stab?

Question

I mean, it’s designed to stop a bullet which delivers much more force than a human being can ever produce during stabbing

In: 784

Answer 1

It comes down to PSI. The tip of a knife can deliver a much higher PSI then a bullet can. You are talking about the needle like tip of a knife versus 1/8 square inch of a bullet head.