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## Homework Statement:

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## Relevant Equations:

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Hello all,

I am currently working on a project where I have to make a total of 3 pinewood derby esque cars. The rules of the project are pretty strict. First, the car must remain on the ground at all times. Second, the car must be self propelled. Third, the car must be able to go in a straight line. Fourth, the vehicle must fit in a 1'x2'x2' box. Fifth and finally, the vehicle must cost no more than $30. With all the restrictions out of the way, here is my project so far.

I have finished 2 of the 3 cars. For the first car, I wrote an arduino script that uses some sensors and for the second car, I used a gravity based propulsion system.

For the scoring of the project, I get point based on if the car worked or not and how unique the propulsion system is. I have put a decent amount of time into finding a third propulsion system, but I am not finding anything that I think will score very well. Any sort of idea would be greatly appreciated.

Thanks

I am currently working on a project where I have to make a total of 3 pinewood derby esque cars. The rules of the project are pretty strict. First, the car must remain on the ground at all times. Second, the car must be self propelled. Third, the car must be able to go in a straight line. Fourth, the vehicle must fit in a 1'x2'x2' box. Fifth and finally, the vehicle must cost no more than $30. With all the restrictions out of the way, here is my project so far.

I have finished 2 of the 3 cars. For the first car, I wrote an arduino script that uses some sensors and for the second car, I used a gravity based propulsion system.

For the scoring of the project, I get point based on if the car worked or not and how unique the propulsion system is. I have put a decent amount of time into finding a third propulsion system, but I am not finding anything that I think will score very well. Any sort of idea would be greatly appreciated.

Thanks