omg, this is so cool! i'm doing a roller coaster made out of recyclable materials, and it is REALLY hard! we have to have it done by tomorrow, and i'm working on it now! it's physics, and something a college student would do, and i'm in the sixth grade!!! but, i can do it, i hope...
What is this? Amateur hour? We have to have to do over 10 obstacles in our class.. You have two.. A loop and a hairpin turn.
xkevinscottx 1 week ago
very cool project, men, can you tell me the materials did u used, where I can buy it and how I can do it?
SFGarcia96 3 months ago
omg, this is so cool! i'm doing a roller coaster made out of recyclable materials, and it is REALLY hard! we have to have it done by tomorrow, and i'm working on it now! it's physics, and something a college student would do, and i'm in the sixth grade!!! but, i can do it, i hope...
TheCourtney74 4 months ago
how do u make it go up hill
basketballmanfb 5 months ago
it does larger marbles as well
PengyGoy 7 months ago
ok. It looks kinda crappy though
44dragon23 10 months ago
very nice work man! im doing one for my physics class, having a littile trouble tho :) any suggestions:P
jennak33 1 year ago
@jennak33 Patience and dedication. It really depends on your materials.
noonewillknow123 11 months ago
how you do that
thejulian280 1 year ago
awesome!
ThaPingPongMasta 1 year ago
nice piease of work.awsome 5* for you
wildaboutlions 2 years ago
cool i rated 5
transformerfan41 2 years ago