if an ice skater is spinning will she spin faster if her arms are close to her body?

Question

and why?

Answer 1

Indeed, conservation of momentum - just the way physics works in our galaxy.

Answer 2

i'm going to imitate Perredistas and say the entire opposite element: Slower; yet with a seize; it relies upon on which spin and how are the palms and at which area of the spin are the palms faraway from the physique. Stephane Lambiel did no longer sell his soul to devil to get to those speeds and nor are his blades the Holy Grail melted into the form of a blade. the element is that he found out a thank you to apply the situations wherein having your palms and legs away out of your physique to strengthen the cost of a spin somewhat of shrink it. it is hard to describe, I merely understand which tricks artwork and which do no longer which could enhance quite a few revs like magic to a take a seat spin it relatively is understanding of steam; a great form of it comprises pulling your torso right into a wierd place and putting the blade of the unfastened leg straight away into the placement the place somebody with a sane concepts will say that may not artwork to velocity up the spin. definite, i'm concerning putting the blade extraordinarily much in the comparable place as a Pancake spin yet outwards good the place the centrifugal tension is attempting to tug the blade back in. the only seize I see is that even with the cost enhance, the spin loses particularly stability and that i won't be able to hold the placement for too long (it is merely way too a lot potential for my muscle tissues) yet in the COP gadget, in case you may enhance some velocity right into a spin it extremely is slowing down it relatively is a point up. the lads on the ISU by some potential know it is suited against all logic. Pulling your palms out additionally works in the Layback in case you recognize while to do it and in the journey that your Layback is stable adequate to circulate to such speeds as to completely dropping theory of gravity. i attempted this as quickly as and the Layback strengthen into so useful yet so hard to regulate, I flew off the ice and fell extremely a distance away no longer in all likelihood understanding what the hell had merely occurred. relatively it is not merely which you pull your palms out, area of the trick is to tug them back in actually "trapping" as a lot centrifugal forces from around you as achievable. If my Layback starts to strengthen into totally good back, i'm going to objective it back while the ice is stable and there is not any undesirable saps close to me that gets squished when I try this loopy element back.

Answer 3

She'll definitely spin faster. When your arms and legs are close tight to your body your not letting air through which slows you down. If you leave your arms and legs out away from your body more then there is more air that will slow you down. Hope i helped =]

Answer 4

Yes, this has to do with the physics of skating.
Here are some links explaning it
http://clackhi.nclack.k12.or.us/Physics/projects/experiments/2002/Figure%20Skating/figure%20skaking.html
http://home.honolulu.hawaii.edu/~leilani/padraft.html
http://www.suite101.com/article.cfm/figure_skating/117305
http://www.bsharp.org/physics/stuff/skater.html
http://btc.montana.edu/olympics/physbio/biomechanics/cam-intro.html

Answer 5

yes. Watch a video of fumie sugri's final spin on youtube. she pulls her freelegs and arms into one line with her body she spins much faster than she was spinning in the other positions.

Answer 6

yes, because its physics.

Answer 7

because it takes more energy to spin a person with their arms held out = greater mass (combination of weight and size). if a skater generates X amount of centrifugal force, as she brings her arms closer to her body, her mass is reduced and that same amount of energy produces greater spin speed

Answer 8

yes. Simple as that, I'm not going to bore you with fancy physics mumbo-jumbo.

Answer 9

Yes.

It has to do with some fairly complex math and mid-to-high level physics.

Basically, with arms out, she is a bigger object, so the same force will spin her slower. Pull the arms in, and she is smaller, so the force is more concentrated, so speed goes up.

That is a ridiculous oversimplification, but it's basically correct.

Answer 10

Yes, she will spin faster. IIRC, the governing principal is called angular momentum.

Answer 11

yes she will it has to do with the moment of inertia. the closer your arms and legs are to the middle of the spin axis the faster you will spin