scott wrote:
>> And not because, oh, I don't know, it's 100x smaller mass has 
>> significantly lower inertia to overcome in the first place?
> 
> That's only important once you get up to a high enough speed that you 
> can't overcome friction (about 10-20 mph in road cars, 60 mph in fast 
> cars, up to 100 mph in racing cars).  Before that coefficient of 
> friction is the only thing that matters.

My point being that a smaller mass requires a smaller force to 
accelerate it, and thus less traction.

A cheetah's legs don't need to generate 500 BPH to get it from 0 to 60 
in 4 seconds. Because a cheetah doesn't weigh a quarter of a ton...

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