These are some of the calculations and measurements we made about the iceboat, that I can remember right now:

Coefficient of Static friction (μ):

This was calculated by wieghing the iceboat and then determining how much force it took to move from a stop.

Keep in mind this is very rough because of mostly instrument error, and the skates have been redesigned to be much lower drag.

Fn=3.547N

Ff=0.45N

.45N/3.54N=.13μs

Of course this is static realisticlly when the thing is cruising at 35 mph the kenetic force might be half of that at maximum.

Say the normal size of an iceboat is 30 feet long, ours is about 2 feet, that makes the scale speed 600 mph or almost mach one.

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