hehe in my class we hav one genius(not me) another smart person almost smarter then the genius(not me) .... a smart person who doesnt do much(not me) a person considered smart(me)xd
I'm gonna guess negligible fricktion means no friction but then again i don't know the WHOLE question to answer any of these lol. How can a wagon go vertical(90 degree angle) when it's an open railway that rolls????ok wait it says an open railway wagon rolls with negligible friction in vertically falling rain..dang i just checked the answer