0
How much potential energy does 60 kg skater have at 12 meters above ground?
Wiki User
∙ 9y ago
The skater has potential energy of 7,056 joules.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What is the relationship between a potential energy and the height of a skater on a track?
The higher something is, the more potential energy it has stored.
What is the mass of a skater if the potential energy is 600j velocity is 5ms height is 6?
20kg
What is the difference between kinetic energy potential energy and mechanical energy?
Potential energy is energy that has the potential to be moved. Kinetic energy is energy in motion. eg. Potential energy could be like a fire extinguisher that is on the wall it has the potential to fall on the ground . An example of Kinetic energy is would be a moving car, it is in motion .
A 45 kg skater is skating down a hill on roller blades at a speed of 10.0 ms What is the kinetic energy of the skater?
KE=(0.5)(m)(v)^2 KE=225J
Why does the mechanical (total) energy of the skater not change over time?
It certainly does; mechanical energy will be wasted due to friction. Otherwise, if you disregard friction, the fact that the total mechanical energy is conserved follows from conservation of energy.
What is the relationship between a potential energy and the height of a skater on a track?
The higher something is, the more potential energy it has stored.
What is the mass of a skater if the potential energy is 600j velocity is 5ms height is 6?
20kg
How can energy be conserved as a skater rolls down a ramp?
When rolling down, potential energy is converted into kinetic energy. If there is no friction, this means the skater moves faster and faster. If there is energy (the usual situation), part of this movement energy (kinetic energy) will be converted into heat.
What is the difference between kinetic energy potential energy and mechanical energy?
Potential energy is energy that has the potential to be moved. Kinetic energy is energy in motion. eg. Potential energy could be like a fire extinguisher that is on the wall it has the potential to fall on the ground . An example of Kinetic energy is would be a moving car, it is in motion .
A 45.0 kg skater is skating at a speed of 12.0 ms The skater coasts to a speed of 6.00 ms How much kinetic energy has the skater lost?
2430
What type of energy is used during speed skating?
There is a large conversion of chemical energy to mechanical energy in the body of the skater. Lots of that! (That may be part of the reason for being out there!) That is what the muscles are doing all the time - converting chemical energy to mechanical energy. The body is a chemical engine, and we convert chemical energy into mechanical energy every moment we are alive. There is more, so let's look! There will be conversion of potential energy to mechanical energy at all time the skater is in motion, too. And mechanical energy is converted to potential energy as well. This may not be obvious, but walking is a constant process of converting potential energy to mechanical energy and vice versa. When we walk, we lean forward and gravity begins to pull us down. We're converting potential energy into kinetic (mechanical) energy. We then put out a foot and lift ourselves back up that tiny bit that we "fell" and that's converting mechanical energy into potential energy because we "lifted" ourselves upright again. Then we start all over with the next step. Make sense? Walking, running or skating all put the same principles into motion. The mechanical energy of friction and its conversion into heat happens in the skates, particularly in the bearings and wheels. The motion - any at all - will create a bit of heat due to friction. The more the motion, the more mechanical energy is converted into heat. Even with good bearings that are properly lubricated, they assembly will warm up. The wheels will be warm to the touch after only a brief time of skating, too. You know why? Yup. Conversion of the mechanical energy of friction into heat energy. There's a lot going on when we skate!
A skater increases her speed uniformly from 2.0 meters per second to 7.0 meters per second over a distance of 12 meters The magnitude of her acceleration as she travels this 12 meters is?
5.0 meters every second.
What American won the most medals in the 1992 winter Olympics?
That was speed skater Bonnie Blair and short track speed skater Cathy Turner with 2 each. Blair won gold in the 500 meters and 1,000 meters and Turner won gold in the 500 meters and silver in the 3,000 meter relay.
Who was the person that won 5 gold medals in 5 events in 1980 games?
Speed skater Eric Heiden of the United States. Heiden won gold in the 500 meters, 1000 meters, 1500 meters, 5000 meters, and 10000 meters.
If an ice skater moving at 10 meters coasts to a stop in 100 meters on a smooth ice surface then what is the coefficient between the ice and the skates?
The easiest way to solve this problem is to use the conservation of energy, assuming there are no external forces (such as air drag) acting on the skater/ice system.The two forms of energy relevant to this problem are kinetic energy K and thermal energy Et.Since energy is conserved, the energy of the system must be the same before and after the skater came to a stop.Ki + Eti = Kf + Etfwhere K = 1/2mv2 and Et = fdThermal energy Et is equal to the product of the frictional force and the distance upon which it acts, where the frictional force f can be rewritten as a product of the coefficient of kinetic friction µ and the normal force n.f = µnSince there are no other forces acting on the skater in the vertical direction, the normal force n must be equal to the gravitational force Fg, which is the product of the mass of the skater times the acceleration due to gravity.Fg = mgSo we get that the thermal energy can be rewritten asEt = µmgd.Substituting all of this back into the original equation yields:1/2mv2i + µmgdi = 1/2mv2f + µmgdfNotice that each term contains mass m, so they cancel out. You are left with1/2v2i + µgdi = 1/2v2f + µgdfThe thermal energy at the very beginning of the problem is zero, and the kinetic energy at the very end is zero (the skater has stopped), so those terms also drop out.1/2v2i + 0 = 0 + µgdf1/2v2i = µgdfSolving for µ yields:µ = (v2i)/(2gd)Knowing the acceleration due to gravity to be 9.8 m/s2 and having been given the initial velocity vi = 10 m/s and the distance d = 100 meters, one can simply plug in the values.µ = 102/2*9.8*100µ = 0.05(The coefficient of friction has no units)
Why do people thinks of skaters in bad ways?
I dont know but I think that it is because some stupid skaters think they have to do drugs and smoke to be a skater. I think that to be a skater you just have to skate board and maybe wear skater clothing. (and you dont have to wear your pants on the ground that is just dumb)
A 45 kg skater is skating down a hill on roller blades at a speed of 10.0 ms What is the kinetic energy of the skater?
KE=(0.5)(m)(v)^2 KE=225J
