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Does a rock have potential and kinetic energy as it hits the ground?
Wiki User
∙ 12y ago
When a ball is about to fall it has potential energy because of its height.
When a ball is about to hit the ground it still has some potential energy since it has't hit the ground yet, but much less than it had when it started falling.
Wiki User
∙ 11y ago
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How Kinetic Energy is related to Potential Energy?
Potential and kinetic energy are sort of like inverses. They are not technically inverses strictly speaking in the mathematical sense. Potential energy can become kinetic energy, and vice versa. Keep in mind the mathematical concept of the change in each. (change in) Potential energy= (change in) Kinetic energy. For example, let's say that we had a mass of 1 kg suspended 1 metre above the ground. If we drop it, its kinetic energy by the time it hits the ground is (1/2)mv2 . (1/2)(1kg)(9.82 ) (m2 ) or 48.02J It's potential energy at this point is 0, because it is on the ground and is not suspended in the air. Potential and kinetic energies act as inverses because before the mass was dropped its kinetic energy was 0 and its potential energy was 48.02J. By the time the mass had dropped to the ground however, the potential energy had all transferred into kinetic energy.
How does potential and kinetic energy relate to football?
The football has (gravitational) potential energy because of its position above the ground. It also has kinetic energy because it is moving. The combined energy is called mechanical energy.
As an object falls toward the ground what happens to the kinetic energy of the object?
It gains kinetic energy because it is accelerating. Once it hits the ground, all of it's kinetic energy is converted different types of energy. Example: drop a rock from your head. When it hits the ground it create friction and there fore heat, heat is energy. It also makes a sound when it hits the ground, sound is energy. If you were to take the heat and the sound energy a d add them together, you would get the equal amount of potential energy the rock had when it was at your head ready to drop. Therefore, in this case, the kinetic energy was coverted to heat energy and sound energy.
A ball thrown by a boy from the roof top is what motion?
When the boy is holding the ball it has Gravitational Potential Energy (GPE).When he lets go the Gravitational Potential Energy is converted to Kinetic Energy.As the ball is falling it continues to gain Kinetic Energy, however, the friction from the air on the ball increases (Air Resistance).When the Kinetic Energy and Air Resistance become equal the ball is said to have to reached Terminal Velocity.Once the ball hits the ground the Kinetic Energy is transferred to the ground through heat (Friction) and also as sound.Remember energy cannot be created or destroyed, it is always transferred.
What is the kinetic energy of an object weighing 65 kg dropped from a height of 40m?
Kinetic energy is dependent on which point you are talking about. When it is about to be dropped, kinetic energy is zero. When it reaches almost hits the ground, there is maximum kinetic energy.
Describe a stone falling off the tabletop in terms of both kinetic energy and potential energy?
Sitting on the table the stone has potential energy, relative to the ground, of weight times height, mgh. It has zero kinetic energy so its total energy is E = 0 + mgh. When it begins falling it loses potential energy (as it loses height) and gains kinetic energy ( as it picks up speed) so the sum stays the same as initially E = KE + PE = mgh. Just before it hits the ground all of its potential energy is gone and has been transformed into kinetic energy. So the kinetic energy at the bottom (1/2)mv^2 will equal the potential energy at the top.
When an egg hits the ground does it have friction?
the height of an object has more POTENTIAL ENERGY.Converted to kinetic energy
Describe the conversions between potential and kinetic energy that occur when you shoot a basketball in a basket?
When the ball is positioned in your hands it has full potential energy. As you move and the ball is thrown at the basket, the potential energy is converted to kinetic energy, by the transfer of kinetic energy from your arms, to your hands, to the ball. When the ball hits the basket some of its kinetic energy was converted into potential energy and then back into kinetic energy as it hit the ground.
What is the relationship between potential energy and thermal energy?
Hold a rock in the air ... it has potential energy. Drop it ... the potential energy will be converted into kinetic energy. It hits the ground and stop ... the kinetic energy will be converted into thermal energy. Note that the total energy in each case is the same.
How Kinetic Energy is related to Potential Energy?
Potential and kinetic energy are sort of like inverses. They are not technically inverses strictly speaking in the mathematical sense. Potential energy can become kinetic energy, and vice versa. Keep in mind the mathematical concept of the change in each. (change in) Potential energy= (change in) Kinetic energy. For example, let's say that we had a mass of 1 kg suspended 1 metre above the ground. If we drop it, its kinetic energy by the time it hits the ground is (1/2)mv2 . (1/2)(1kg)(9.82 ) (m2 ) or 48.02J It's potential energy at this point is 0, because it is on the ground and is not suspended in the air. Potential and kinetic energies act as inverses because before the mass was dropped its kinetic energy was 0 and its potential energy was 48.02J. By the time the mass had dropped to the ground however, the potential energy had all transferred into kinetic energy.
Are gravitational potential energy and kinetic energy equal in all cases?
They're hardly ever equal. One of the few situations where they're equal is when you drop a weight to the ground from some height. Then, the gravitational potential energy and kinetic energy are equal when it's exactly in the middle of the drop, and the kinetic energy it has when it hits the ground is the same as the gravitational potential energy it had when you let it go.
How does potential and kinetic energy relate to football?
The football has (gravitational) potential energy because of its position above the ground. It also has kinetic energy because it is moving. The combined energy is called mechanical energy.
What happen to the kinetic energy of a falling book when the book hits the floor?
when book is dropped from the height its kinetic goes on increasing and the sudden stop to the book when it touches the ground all the kinetic energy of the book is converted into potential energy of the book which helps the book to be stable after the impact, in short when the book hits the ground kinetic energy is converted to potential energy due to law conservation of energy.
When an orange rolls off a table its potential energy is converted into what?
The potential energy is progressively changed to kinetic energy as the orange falls. When it hits the ground most of it is converted to heat.
Is water flowing from a waterfall before it hits the pond below kinetic or potential energy?
is water real
Give one example to show how potential energy can be converted to kinetic energy?
If you have an object on the roof it has potential energy of weight x height above the ground. When you drop it off the roof it is converted to kinetic enemy as it hits the ground, of value 1/2 its mass x velocity squared.
Is running an kinetic or potential energy?
The potential energy of the mass of the sky diver is transformed into kinetic energy during the free fall. The kinetic energy of the free fall is transformed into kinetic energy and heat of the air when the parachute is deployed.
