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Posted: 1/21/2006 2:30:25 PM EDT
We have a soapbox derby race tomorrow for the youth at Church. All the cars are the same.The youth get to push the car to start.

All things being equal, would you want a heavier driver or lighter.
My money is on lighter, but do you need the weight to overcome rolling friction?

Help.
Link Posted: 1/21/2006 2:33:03 PM EDT
depends on how far they are rolling and how steep the hill is. if it is a pretty long run the heavy kid is going to get some more speed
Link Posted: 1/21/2006 2:36:27 PM EDT
skinny wheels
Link Posted: 1/21/2006 2:42:37 PM EDT
My vote says the heavier driver/car setup will travel farther, faster.
Link Posted: 1/21/2006 2:43:18 PM EDT
Go to Max allowable weight--preferably with lead (if legal) low under the chasis of the car.

Remove as much wood as possible to give the smallest cross section (aerodyamics).

Lube (Dry Graphite) the wheels as well as possible--if allowable use bearings.

Take the wheels and shave the edges down to limit the amount of contact on the track.

(Assuming all the above are legal & safe for track conditions).

AFARR
Link Posted: 1/21/2006 3:01:03 PM EDT
Go with spikey wheels, and just take out the competition, a-la-nelson


Link Posted: 1/21/2006 7:03:16 PM EDT
Go to Max allowable weight--preferably with lead (if legal) low under the chasis of the car.

Remove as much wood as possible to give the smallest cross section (aerodyamics).

Lube (Dry Graphite) the wheels as well as possible--if allowable use bearings.

Take the wheels and shave the edges down to limit the amount of contact on the track.

(Assuming all the above are legal & safe for track conditions).

AFARR


Uh, AFARR, that is good advice about PINEWOOD Derby cars... but this is SOAPBOX Derby. You know, big boxy cars the kids sit in and coast downhill.

It's OK, we understand. You probably missed your nap today. We forgive you.

Link Posted: 1/21/2006 7:10:49 PM EDT
Link Posted: 1/21/2006 7:14:09 PM EDT
Heavier driver. More weight translates to more force acting against (all things being equal) the same amount of wind resistance. This should be more significant than any added rolling friction. A fast runner might mike up the difference though.
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