Flash Experts Help Me Out Here.

So I got caught up reading the flash vs superman battle thread on here and I have a question about the flash. Now from what I understand the speed force protects him from the forces of friction correct? So does it also grant him invulnerbility? Its basically in reference to the IMP. If you were to hit a brick wall it would hurt your hand. So as far as I understand the flash is basically human (besides the obvious super speed). I mean a bullet could kill him if it hit him correct? So going off of that if the Flash punched something at beyond light speed wouldn't he basically destroy his hand if not his whole arm. Just trying to get my head around how it works.

No. The speed force does offer some protection, which is why his molecules aren't ripped apart by the sheer speed of light itself.

Ok cool thats what I figured the answer would be. Thanks for the info.