What is the easy and reliable way to make a working roller coster for physics class?

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Please tell me what material should be used. Please be serious.

2006-06-19 05:30:43 · 3 answers · asked by Dominator. 2 in Science & Mathematics ➔ Physics

K-Nex!

dp

2006-06-19 05:42:35 · answer #1 · answered by mikemadie 4 · 0⤊ 0⤋

metal rails, hills, and good wheels

2006-06-19 05:47:53 · answer #2 · answered by Anonymous · 0⤊ 0⤋

KNEX

2006-06-19 05:32:35 · answer #3 · answered by mrsdebra1966 7 · 0⤊ 0⤋