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2,250 joules

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Q: A 45 kg skater is skating down a hill on roller blades at a a speed of 10 ms what is the kinetic energy of the skater?

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Kinetic Energy. Kinetic is moving energy and potential energy is how far it could potentially move yet is staying still.

Assuming no energy is lost to air resistance or friction, then the potential energy at the highest point is equal to the kinetic energy at the lowest point of the ride.

The greatest amount of potential energy of a roller coaster is at its highest point. Remember, potential energy is relative: an apple hanging from a tree has far more potential energy relative to the ground than the same apple sitting on a table on the top floor of a sky scraper relative to the table. Now, the roller coaster itself has no kinetic energy (its not moving), but the "cart" or "coaster" does. The greatest point of kinetic energy of the coaster is the point where it is moving the fastest. The more speed the more kinetic energy. The more height above a specific point the more potential energy.

There are several types of energy. potential energy is something that has the potential to move, like a roller coster at the top of the slope. Kinetic energy is the energy of something in motion, like the roller coster while it is hurtling down. Everything has potential energy.

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KE=(0.5)(m)(v)^2 KE=225J

Kinetic Energy. Kinetic is moving energy and potential energy is how far it could potentially move yet is staying still.

Kinetic Energy = (1/2)(m)(v2) where m=mass of object, v=velocity of object Substituting values into the equation. Kinetic Energy = (1/2)(45)(10)2 = 2250 J

kinetic_energy = ½mv² = ½ × 45 kg × (10 m/s)² = 2250 Joules.

The back of a roller coaster has the most kinetic energy.

The roller coaster increases kinetic energy when its velocity is increasing.

The cars of a roller coaster reach their maximum kinetic energy when at the bottom of their path.

If you are crazy enough to try, I don't see why not :)

Kinetic energy comes from movement. If the roller coaster is moving at the top of the hill, it has kinetic energy. if the rollercoaster isn't moving then it has potential energy.

a roller coster

If its moving it has kinetic energy

maximum kinetic energy when at the bottom of their path.

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