[quote]Cymru wrote:
SWR-1240 wrote:
splicer wrote:
Of course, weightlifters are more powerful than power-lifters. P=F(d)/t, that is power equals force multiplied by distance divided by time. Now compare a max clean to a max deadlift. The weightlifter moves the bar further and faster than the powerlifter. The difference in distance is greater if you compare a sumo style powerlifter to weightlifter. The weightlifter moves the bar from floor to racked on shoulders in less than a second. How long does a max deadlift take? I will be nice and say 3 seconds. How about mass? Granted a world class power-lifter can deadlift a shitload. However, the mass moved does compensate for the other variables.
Example:
Deadlift
Yuriy Fedorenko 405 kilos!
Clean and Jerk
Leonid Taranenko 242 kilos
Bodyweight of both athletes at time of lift 110 kilos.
Now I will be generous and say the distance the bar is lifted is the same, to the top of thighs for Fedorenko racked on the shoulders in full squat for Taranenko. Furthermore, I will say that floor to shoulders took Taranenko one full second, which is not likely, it must assuredly occured in less than a second. The deadlift for Fedorenko 3 seconds a very, very generous value.
Power output Fedorenko:
P=405(10)(1)/3 =1350 watts
Power output Taranenko:
P=242(10)(1)/1 =2420 watts
where 10 is the acceleration due to gravity and the 1 in the numerator is the distance.
Also consider that Fedorenko put his bar down whereas Taranenko stood up took a deep breath and then lifted his bar over his head! Again producing power output equivalent to his clean.
So weightlifters are more powerful. The physics speaks for itself. As far as athleticism, well power and athleticism are joined at the hip. Which group is stronger? Well strength is really another way of saying how much work can you do, where Work=F(d). I will leave that open to discussion, but my personal opinion is that the power-lifters stripped of their gear and challenged to a series of lifts, for instance overhead press, deadlift with feet on blocks, and max chin-ups (corrected for body weight) would get destroyed by a group of weightlifters.
So if a long distance runner picked up a decent sized rock, and ran with it durring a 25K run, would that mean he did more work, and is therefore stronger than any other athlete?
Lets say the rock weighed 2kilos, and…oh never mind.
Not unless he ran the distance very quickly - power = rate of doing work ie time is a critical constraint!
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actually, in that instance no “work” is being done since teh direction of movement is perpendicular to the resistance being applied … thus showing the fallacy of equating physics terms to what we normally mean