If you've ever watched an Olympic ice skater do a spin, you may have noticed that he or she will draw in her arms closer to her body in order to increase the speed of rotation. This is in keeping with the law of the conservation of angular momentum.
When she pulls her arms in, her rotational kinetic energy increases because her moment of inertia decreases, causing her to spin faster.
When a skater pulls her arms in towards her body, she reduces her moment of inertia, which is the resistance to changes in rotation. This causes her to spin faster due to the conservation of angular momentum, which states that angular momentum must remain constant unless acted upon by an external torque. By bringing her arms closer to her body, she decreases her moment of inertia, causing her angular velocity (spin speed) to increase to maintain constant angular momentum.
The quote "Do you ever put your arms out and just spin and spin and spin?" is from the film "Eternal Sunshine of the Spotless Mind." It is spoken by the character Clementine, portrayed by Kate Winslet.
They spin faster than old ones because some old ones are so old that they can't even move. That is my answer.(:
When a spinning skater pulls in her arms to turn faster, her angular momentum is conserved. Angular momentum is the product of an object's moment of inertia and its angular velocity. By pulling her arms in, the skater decreases her moment of inertia, causing her angular velocity to increase in order to maintain a constant angular momentum. This is similar to the principle of conservation of angular momentum seen in other rotating systems.
hold arms and legs close to your chest
Bend your knees with your arms out twist entire upper body to one side and bring your arms around bring your arms in as though you are hugging a stuffed animal and strighten your legs. you will spin faster if your legs are straight and your arms are in.
When she pulls her arms in, her rotational kinetic energy increases because her moment of inertia decreases, causing her to spin faster.
When a skater pulls her arms in towards her body, she reduces her moment of inertia, which is the resistance to changes in rotation. This causes her to spin faster due to the conservation of angular momentum, which states that angular momentum must remain constant unless acted upon by an external torque. By bringing her arms closer to her body, she decreases her moment of inertia, causing her angular velocity (spin speed) to increase to maintain constant angular momentum.
A skater will pull his/her arms in close to their body while spinning to increase the speed and force of the spin in routines this also helps to improve the fluency of the routine and is able to keep going in time to the music. They extend their arms to improve the look of the spin within a performance or routine hope this answered your question :)
pull arms close to your bodykeep a 'secure' position (don't make your body 'loose')skate faster into the spinpractice
The quote "Do you ever put your arms out and just spin and spin and spin?" is from the film "Eternal Sunshine of the Spotless Mind." It is spoken by the character Clementine, portrayed by Kate Winslet.
mercury spins faster.
The center of the clutch is attached directly to the engine crankshaft, when the engine rotates faster the centrifical force spins weighted arms that are attached to the center of the clutch to the outside casing of the clutch forcing it to spin when the arms touch it. The outside casing acts as a pulley for a chain or a belt, separated from the center of the clutch by bearings so that it does not spin until the arms touch it.
They are called arms
All the planets that we know about spin, yes. Some spin faster or slower, or on a different axis, but they all spin.
Shorten the cord you have it on.