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04-12-2008, 12:58 PM #1
A Mistake 99% Badminton Stores Are Making
Whenever they describe the weight of the racket, it is described with a unit of 'Grams' or 'Lbs', when it should be expressed with a unit of 'Newtons' since they're talking about the weight technically. They should express the racket's mass properly.
Just a thought XD
04-12-2008, 01:53 PM #2
Um.., mass is not the same as weight. Weight is relative to gravity, and will be what you feel. Mass is the measurement of the amount of matter. Also, mass is expressed in grams...
04-12-2008, 02:22 PM #3
But my point is, if they express in Weight, they must use a unit of force, such as Newtons.
04-12-2008, 02:52 PM #4
But they're not... They're measuring the mass.
04-12-2008, 02:53 PM #5
04-12-2008, 02:55 PM #6
weight is a force, and indeed has the unit of newtons.
Mass however is an (extensive?) property, and has a unit of grams or pounds.
Also, just for poops and giggles... weight is not only dependend of the gravity, it is depended on all the forces acting on the object.
a 5kg table is acting on the floor with a weight of roughly 50N, whent he table is left standing. but when I lean on it with a 100N force the table is acting on the floor with a weight of 150N.
But it's such a common misconception everybody knows what is meant...
Our site happily states weight
(I guess this removes any doubt people had I was a geek, now they know for sure )
04-12-2008, 02:59 PM #7
If you consider that the earth is pulling the racquet's mass at all times downward, I guess you could certainly describe it in Newtons....and that would be handy... when?
You: "Hey doc, my buddy dropped his 0.090kg racket on my head at 9.8m/s2 meaning I sustained a 0.882 Newton force to my forehead."
ER doc [busy stitching] "Mm, thanks for that Sport. Now just sit still, that's a good lad."
04-12-2008, 03:00 PM #8
Now there's the argument you were going for.
Well, we're talking about "empty" weight, without other forces acting on the object besides gravity. Of course, that's not technically weight. Weight is one property, while another force is not considered the weight, as it is the addition of the weight of another object while there is also work being done on the object if you were to lean on it.
Last edited by Tsumaranai; 04-12-2008 at 03:03 PM.
04-12-2008, 03:08 PM #9
04-12-2008, 03:12 PM #10
04-12-2008, 03:13 PM #11
04-12-2008, 03:17 PM #12
04-12-2008, 03:18 PM #13
Originally Posted by fidget
the force the earth has on an object is called gravity
04-12-2008, 03:20 PM #14
Long lived Newtonian mechanics !!!
04-12-2008, 03:22 PM #15
Thanks Jerby. I stand corrected.
Who would have thunk that BC could be so educational?
04-12-2008, 03:28 PM #16
04-12-2008, 03:31 PM #17
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