Science Buddies: "Ask an Expert"

hello guys, i'm currently build a joule mobile mass transporter that's only three wheels. my physics teacher said that the three wheel car way was easiest. i built the two back wheels already, now i'm stuck on the one front wheel. i don't know how to get it on,make it go, but not wobble =\. please help!

Hello and welcome to the forum!

I've been searching the other threads on Science Buddies about this topic - have you seen them? It looks like some people have used CDs as wheels - what are you using? Anyway, probably the best way to keep a CD from wobbling is to attach it (glue) to the axle and mount the axle in the frame of your vehicle. As other threads mention, bearings and lubricants can help. Let us know if you have any other questions.

Keith

My project has the requirement to make this mass moving mobile with a 1 meter long length, and has to move solely by the force of a 1 kg weight. The weight will be suspended in the front of the car by a string that will start motion of a bottom axle that will make the car move. I am also planning to build 3 wheel cart. Can you pl. guide me the project step by step or if possible illustrate me

Thanks very much