Quote:
Originally Posted by SHIBUMI
I am on a seesaw and I weigh 250 lbs, the person on the other end of the seesaw
weighs 100 lbs. in order for the seesaw to have even balance, our goal, we have to add 150 lbs to the 100 lb end
|
You would be correct, IF a Swingweight scale operated like a seesaw, it does not.
A Seesaw has the fulcrum in the center, a Swingweight scale has the fulcrum, 14" from the Butt end of the club. The formula for simplicity sake, is L x W = L x W.
If a Driver is 45" long, putting a dime on the Butt (14" from the fulcrum) makes the dime weigh 1 Unit. Placing the dime on the clubhead end, makes the dime weigh 3.21 Units. (The actual weight doesn't change, but the moment does.)
A Swingweight scale does NOT measure "weight" in any way, shape or form. It is an attempt to quantify "feel" (balance point), by using "moment".
5th grade Math, 11th grade physics.
It is why when we try to move a boulder in our back yard, instead of using a screwdriver as a lever, we use a pry bar.
See the attached visual and you'll understand how it works. Notice in the 4th & 5th sentence, it explains you have consider the distance from the fulcrum and multiply.