UA_Iron said:hahaha.
Normal forces are a tool of convenience which makes it possible for us to use newtons laws.
Now stop being a douche and comply JUICEDHAIRCUTNAME or you will be brought down.
LOL@ tool of convenience!
kind of like the UA_Iron force: when UA_Iron enters the room, all girls are forced to leave in disgust.
Criteria for being a tool of convenience:
Tool = TRUE
Convenient= TRUE