How do I change the objects gravity?

[Mystik]

I've posted this before in the Half Life 2 Deathmatch section, but nobody answered me, so i'm posting this here:
There is a cheat to change the world gravity, right? It's "sv_gravity". BUT this doesn't change the OBJECTS gravity, it remains the same. My question is: How do I change the OBJECTS gravity? (I've seen this in some net servers. The dead bodies, the grenades... any object floats in the air)

 

[The Brick]

That is the command, but I believe you had to restart the map.

 

[Mystik]

oh, ok. ty

 

[giant384]

no you dont just change the gravity.you turn it off you will be normal but objects will be the gravity that you just did.