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An ice skater has a mass of 65 kg She skates in a large circle What would you need to know to calculate her angular momentum?
Wiki User
∙ 11y ago
The radius of her path
Her speedHer mass
apex
Wiki User
∙ 11y ago
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What is a good name for a pink puffle?
CrayonPaint BoxArty
Do you still call a person a skater if they ride a scooter?
A person might still be considered a skater even if they ride a scooter. Skaters belong to a subculture that is defined by many things, not just the fact that they skate.
What are skate rats?
I think that is referring to a slang use of the the word "skateboarder" or "skater"
What are the adaptations of the pond skater?
water.
Why does a pond skater insect not sink?
A pond skater insect is held up by surface tension.Water molecules have an attraction for each other. At the surface of the liquid there is no water in one direction (up, naturally) so the molecules at the surface are pulled with a net force downwards. This creates a surface layer which has a high viscous property (know as surface tension). To penetrate this layer requires a measurable force. Since the weight of a pond skater does not exceed this force it is held up by the surface of the water.
What An ice skater has a mass of 65 kg. She skates in a large circle. What would you need to know to calculate her angular momentum?
The radius of her path Her speedHer mass apex
When a spinning skater pulls in her arms to turn fasterher angular momentum?
The reason a skater spins faster when she pulls her arms in is because of angular momentum. It is measured by mass x velocity x radius. Bringing her arms in changes her radius and velocity.
What happens to the angular speed of a star as it shrinks?
It must spin faster in order to conserve angular momentum ... the same reason that a skater spins faster when he pulls his arms in close to his body.
If a figure skater is spinning with her arms outstretched why will she spin faster if she brings her arms in?
The answer is related to the conservation of angular momentum. A figure skater will maintain approximately the same angular momentum during their spin (minus a negligible amount due to the friction of their skates and wind resistance). When they move their arms in, they will reduce their rotational inertia by reducing the distance of the mass of her arms and hands from the axis of rotation. In order to maintain the same angular momentum, angular rotation is increased. See the link. Its called the angular conservation of energy. No matter what the skater's position the skater produces a certain amount of energy per second. When his / her hands are extended the distance of the rotation is larger. When he pulls his hands in the weight is unchanged. TO keep the energy at the same amount the difference has to be made up by increasing the number of spins per time unit.
Why does the momentum of a roller skater isn't conserved?
because
Can you spin faster with your arms open?
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.
Why is the momentum of a roller skater is not conserved?
The situation is not quite clear. Total momentum is always conserved, but momentum can be transferred from one object to another.
How a neutron star spins so fast using the law of conservation of angular momentum?
Angular momentum is the energy of spinning objects. We can calculate the energy as the product of the mass times the "moment arm", the distance from the center of rotation tims the speed of rotation. In any closed system, angular momentum is "conserved", or remains constant.On a merry-go-round on the playground, if you get it going and then move toward the center, it speeds up a little. If you move out toward the edge, it slows down.An ice skater spins with her arms extended at a particular speed, but when she pulls in her arms, the rate of spin increases - but the angular momentum remains the same. Her hands and arms, pulled in, have a shorter "moment arm", so to keep the angular momentum constant, the speed increases.A star like our Sun spins in about 25 days. Our Sun is too small to go nova, so let's imagine a star twice as massive. If it were to go nova, about half of the mass would be blown off into space, but the remainder would be crushed into a tiny ball perhaps 20 miles in diameter. But that spinning star, with a rotation speed of perhaps 25 or 30 days, would keep a good part of the angular momentum. The star which once spun at a rate of one rotation per 25 days, with a radius of a half-million miles, now has a radius of 10 miles. So to keep the same angular momentum in such a small package, the neutron star remnant would spin much faster; probably several times per SECOND.
As you in-line skate around the block what action and reaction forces keep you moving?
The skater "acts" on the wheels attached to the skates, causing momentum. This momentum causes an "unbalanced force" that acts with the same amount of force, but in the opposite direction of the skater. The skater acting on the skate wheels produces an equal net force in the opposite direction, which keeps the skater moving.
What are three things that use rotation to remain balance?
Well, the first thing is that anything that observes conservation of angular momentum will to some point maintain balance, while in equilibrium. Some things from the top of my head are: gyroscope, our solar system, dreidel figure skater
What is the momentum of a 50 kg ice skater gliding across the ice at a speed of 5 ms?
It is 250 kgm/s in the direction of the skater's motion.
What is the momentum of 50-kg ice skater gliding across the ce at a speed of 5 ms?
It is 250 kgm/s in the direction of the skater's motion.
