I'm a Physics major at a Top 200 school and all these threads about whether you should count the bar got me thinking.
After doing some calculations, I discovered that due to Newton's 3rd law, the the bar actually exerts a weight on the plates equal to the force of gravity exerted on the bar.
So if you bench 1pl8, the actual amount of weight you lifted is (weight on bar)-(weight of bar)=45 lb.
lol this post again
>>38889804
lol
>>38889804
*45 Litergrams
omelette du fromage
>>38889804
>Top 200 school
hahaa you dnt need to be a scienist to kno ure lifting the weights ON the bar not the bar itself loll
>>38889804
>1pl8
>45 lbs
ah yes, the crooked bench press is my favourite. Really builds those stabilizers.
>top 200
Lmaokek. Your school is probably 200 huh
>>38889804
it does not exert weight on the plate it exerts equal amount of pressure against it. fuck off and stop trying to think your smart when you dont even have half a brain
You also have to take into account the buoying effect of the air between the ground and the bar. Imagine the bar as floating on top of a pool of water that rises up as you lift it.
As you raise the bar you push air out of the way and air quickly collapses into the space below, just as water fills the space you occupy in a pool as you get out.
What does this mean? It means you're lifting far less weight than you think you are because the rush of air under the plates as you lift basically pushes the weight up for you. A 215lb bench press is really more like 170lbs.