would 1/4" alumium dowel spinning in hole in balsa chassis frame have significant unwanted friction?
I am just doing this for physics project...6.0m forward, 4+m backwards(more=extra credit)
only 1 mousetrap though.. :[
Using 12" diameter styrofoam wheels. cut out 6 triangles on each wheel, weighs 15grams each, but will add rubber band or sand paper around outside. good/bad idea?
Any suggestions for axle?
If I used 12" diameter wheels, 1/4" diameter axle(15.25cm radius, .3175cm)
2 * (length of bar)
Total distance = ------------------------ X 2 (.1525m) pi = 96 * (length of bar)
2 * pi * (.003175m)
so...if I make .5meter long bar, my vehicle could go forward 6meters, and backwards 42meters....
With the energy from one mousetrap, is that practical? Speed/time doesnt matter for me.......just distance
Could I go with even longer bar for more distance? or is there already too little torque/force and too much friction with this setup.
truth is, there will be maximum extra credit I can receive..but my teacher wont say how much..
Also, I have fishing wire, but its very plastic-y and smooth, is that okay?