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Rubber band car


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hii i'm in grade 11 and this is regarding an improtant physics projectwhere i need to build a device/ transporter ( i'm GUESSING thst it should be something like a car)this device has to move and have a displacement of 5m north at least and it can obtain its energy to move only form a rubber band and nothing else. there should be NO external forces tht will help the device to move. the object shoudl remain on the surface (its a carpet in this case) throughout its journey.

plzz reply and help. any suggestions or adive also will do.

thank u

amrita

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On carpet use large wheels. I would not recommend using old CD's, unless it's really light. Wrap the elastic around a spool thats attached to the axle. The trick is to try different size spools. If the spool is too big, the car will not go far enough. If the spool is too small it will not have enough power to move.

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