Blackdog Posted November 15, 2015 Posted November 15, 2015 Does anyone know the physics of why breaking a weight off the ground takes a little more strength then holding the weight? My guess is that it's connected to the surface area the object has and gravity. For example a 45 plate being hub gripped has a pretty big surface area, thus the initial 'break' from the ground takes a little more strength than an object with less surface area connecting to the ground. Quote Done: - Close #2 COC - Hold two 45 Hamptons with Hub Grip to full extension, simultaneously both sides - Hub grip 45 Hampton with 10 extra pounds ( 4 - 2 1/2s) on each hand to full extension -Hub grip 60# -Pinch grip two 25s on each hand to full extension Goals: -Get thumb pad a lot bigger -Close #2.5 COC -Close #3 COC -Wrist Wrench #100 -FBBC 2.5 Crusher #170 -pinch two 35s one hand to full extension Me: -Height: 5' 10" -Weight: 184 lbs -BP 102/60 -Pulse 60 -Hand size: 7 7/8"
Mikael Siversson Posted November 15, 2015 Posted November 15, 2015 Because you have to accelerate it (ie applying force in excess of what it takes to hold it stationary). 4 Quote
avasatu Posted November 15, 2015 Posted November 15, 2015 (edited) The impulse caused by the force production during a lift off exerts a force downward on your hands for a very short period of time, and you have to be able to withstand it for at least that little bit of time. This impulse comes from the initial acceleration, and gets worse the more the object is accelerated (but lasts less time). Edited November 15, 2015 by avasatu 1 Quote
Blackdog Posted November 15, 2015 Author Posted November 15, 2015 The impulse caused by the force production during a lift off exerts a force downward on your hands for a very short period of time, and you have to be able to withstand it for at least that little bit of time. This impulse comes from the initial acceleration, and gets worse the more the object is accelerated (but lasts less time). Because you have to accelerate it (ie applying force in excess of what it takes to hold it stationary). Thanks for both these replys. So there is no formula which includes weight, surface area, and gravity?. Just curious Quote Done: - Close #2 COC - Hold two 45 Hamptons with Hub Grip to full extension, simultaneously both sides - Hub grip 45 Hampton with 10 extra pounds ( 4 - 2 1/2s) on each hand to full extension -Hub grip 60# -Pinch grip two 25s on each hand to full extension Goals: -Get thumb pad a lot bigger -Close #2.5 COC -Close #3 COC -Wrist Wrench #100 -FBBC 2.5 Crusher #170 -pinch two 35s one hand to full extension Me: -Height: 5' 10" -Weight: 184 lbs -BP 102/60 -Pulse 60 -Hand size: 7 7/8"
avasatu Posted November 15, 2015 Posted November 15, 2015 No there is not. It is pretty diminishing, by the way. By that I mean that the higher the acceleration, the less a small increase in that acceleration will effect the force production needed to accommodate for that increase. This is a good thing, because it means people who train to be explosive off the ground aren't wasting their time. 1 Quote
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