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I am building a truck from trash as materials. I have one small motor and a a few small gears, but no other engineered materials are allowed. The truck must carry a load for a distance of 3m. The winning truck is the truck with the greatest ratio of load carried:time.

What do you think would be the best approach to this project in terms of the gears and the radius of the driven wheels?

I don't know what would be the best approach in terms of torque and angular velocity.

Any other tips or inputs would be greatly appreciated!

Thanks!

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What is your source of energy? A battery, solar panels, gas? Trash reminds me of Back To The Future, but I guess you don't have a Mr. Fusion –  Rafael Reiter Feb 13 '13 at 21:39
    
2 AA batteries. Yes I wish, you will all have to be my Mr. Fusion! –  user20931 Feb 13 '13 at 22:15

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