Question

Help figure out how to do this?

Answer 1

I've enclosed a powerpoint slide with a possible answer.
Woosh !
An olympic 100m sprinter will be doing a speed of about 10m/s. By the looks of those numbers, they’re talking about a speed boat of some sort, not a rowing boat. I don’t know very much about boats, except that the ones that survive are the ones that float.
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Answer 2

@osprey

the sprinter will peak at a much higher speed than that, but still a a good bit off a cheetah.

i read that most of Bolt's power output is used in overcoming air resistance. quite amazing really!!

Answer 3

so Bolt is not aerodynamically efficient, so to speak ? I think that the same is true of a car moving at constant speed. Most/all of the power of the engine is used to overcome air resistance/wind friction. Maybe if bolt were shorter and less broad, but with the same bits that make him seemingly fast, he'd be even faster.
Yes, I was referring to the average speed over the 100m. As it's from a still start, and there's a need to accelerate (without breaking your leg) then the peak speed will be higher - 15, 20 m/s ???? perhaps 2nd or third gear in a car ??
Cheetahs can do, what is it, about 50 miles an hour ? Pity the poor sodding gazelle that gets in the way of that thing coming at him or her.

Answer 4

indeed mate!

i think cheetahs do about 42km/h

but they can only keep it up for a short while.