answersLogoWhite

0


Best Answer

That depends on the circumstances.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Does kenetic energy exceed Gravitational potential energy?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Physics

What happens when potential energy and kinetic energy of a ball as it rolls down a hill?

Although your question was silent on the matter, we assume that the ball is at rest at the top of the ramp. At that point, it has no kinetic energy, since it's not moving. Its energy is all potential (due to gravity). When you release the ball to roll down the ramp, potential energy is converted to kinetic energy. (Remember, energy can't be created or consumed; it merely changes its form.) You can calculate the ball's potential energy by multiplying its height, h, and its mass, m, by the acceleration of gravity, g. That is, Ep = hmg. Kinetic energy can be calculated by multiplying 0.5 by the object's mass and the square of its velocity, v2. That is, Ek = (1/2)mv2. So, if you equate the two equations (Ep = Ek) you get hmg = (1/2)mv2. That is a powerful formula that allows you to solve for v if you know h and vice versa. If the ball has significant size and mass and it rolls down the ramp the kinetic Energy gets a little more complicated. The (1/2)mv^2 refers to the linear velocity of the center of mass but you should also add to that the rotational energy of the ball about its center of mass. This formula is (1/2)Iw^2; where I is the ball's moment of inertia and w is the balls angular velocity


Does steam and spiral knights give you 200 mist energy?

No, mist energy will never exceed 100 units.


Does velocity depend on the height of an object?

The height of an object suspended in a uniform gravitational field gives the object an associated potential energy. This energy is described byPotential Energy = m*g*hwhere m represents the mass of the object, g represents the acceleration of the gravitational field, and h represents the height of the object relative the bottom of its trajectory.When the object is released, it will tend to accelerate in the direction of the gravitational field, transforming its potential energy into kinetic energy. This is referred to as "free-fall." The kinetic energy can be described byKinetic Energy = 0.5*m*v2where m represents the mass of the object and v represents the instantaneous velocity of the object.During free-fall, energy is conserved so, the total energy of the system is constant and can be described asEnergytotal = Kinetic Energy + Potential EnergyE = 0.5*m*v2 + m*g*hThis is true at any instant during free-fall, so we can rewrite it to describe velocity in terms of height and we getv = (2(E/m - g*h))1/2To calculate the constant E, it is convenient to set the kinetic energy to zero (when velocity is zero) and the potential energy will be at its maximum. This occurs at the initial height. Here, the total energy is equal to the potential energy.


The rule stating that work output can never exceed work input is an application of the law of conservation of?

The Law of Conservation of Energy


Can you make the work output of a machine greater then the work input?

No - that would violate Conservation of Energy. So far, there is no known process that violates Conservation of Energy, and it doesn't seem likely that one will ever be found.

Related questions

Does kinetic energy always convert back into gravitational potential energy?

If you stood at the top of a building with a bottle rocket and aimed it straight at the ground and fired it, it's kinetic energy would exceed it's initial gravitational potential energy. It's kinetic energy would equal the acceleration due to gravity plus the energy of the rocket thrust minus any resistance to air as a result of it's shape.


What is the affect?

It is a method in which you accelerate towards a large gravitational force (usually a planet), which then also accelerates you further and you exceed the velocity necessary to break away from it gravitational field of the object, so you get a velocity boost


What is the slingshot affect?

It is a method in which you accelerate towards a large gravitational force (usually a planet), which then also accelerates you further and you exceed the velocity necessary to break away from it gravitational field of the object, so you get a velocity boost


What happens when potential energy and kinetic energy of a ball as it rolls down a hill?

Although your question was silent on the matter, we assume that the ball is at rest at the top of the ramp. At that point, it has no kinetic energy, since it's not moving. Its energy is all potential (due to gravity). When you release the ball to roll down the ramp, potential energy is converted to kinetic energy. (Remember, energy can't be created or consumed; it merely changes its form.) You can calculate the ball's potential energy by multiplying its height, h, and its mass, m, by the acceleration of gravity, g. That is, Ep = hmg. Kinetic energy can be calculated by multiplying 0.5 by the object's mass and the square of its velocity, v2. That is, Ek = (1/2)mv2. So, if you equate the two equations (Ep = Ek) you get hmg = (1/2)mv2. That is a powerful formula that allows you to solve for v if you know h and vice versa. If the ball has significant size and mass and it rolls down the ramp the kinetic Energy gets a little more complicated. The (1/2)mv^2 refers to the linear velocity of the center of mass but you should also add to that the rotational energy of the ball about its center of mass. This formula is (1/2)Iw^2; where I is the ball's moment of inertia and w is the balls angular velocity


Does steam and spiral knights give you 200 mist energy?

No, mist energy will never exceed 100 units.


Reactants capable of interacting to form products in a chemical reaction must first?

Have sufficient energy to exceed the "activation energy" for the reaction.


Define potential GDP under what circumstances does actual real GDP fall short of potential GDP equal potential GDPand exceed potential GDP?

Potential GDP is basically the sum of growth in productivity, growth in labor force, and growth in number of hours worked. In a mature economy like the US, change in number of hours worked is insignificant and often ignored. -Potential GDP is the level of real GDP that the economy would produce if it were at full employment. When real GDP falls short of potential GDP the economy is not at full employment. When the economy is at full employment real GDP equals potential GDP. Real GDP can exceed potential GDP only temporarily as it approaches and then recedes from a business cycle peak.


Does velocity depend on the height of an object?

The height of an object suspended in a uniform gravitational field gives the object an associated potential energy. This energy is described byPotential Energy = m*g*hwhere m represents the mass of the object, g represents the acceleration of the gravitational field, and h represents the height of the object relative the bottom of its trajectory.When the object is released, it will tend to accelerate in the direction of the gravitational field, transforming its potential energy into kinetic energy. This is referred to as "free-fall." The kinetic energy can be described byKinetic Energy = 0.5*m*v2where m represents the mass of the object and v represents the instantaneous velocity of the object.During free-fall, energy is conserved so, the total energy of the system is constant and can be described asEnergytotal = Kinetic Energy + Potential EnergyE = 0.5*m*v2 + m*g*hThis is true at any instant during free-fall, so we can rewrite it to describe velocity in terms of height and we getv = (2(E/m - g*h))1/2To calculate the constant E, it is convenient to set the kinetic energy to zero (when velocity is zero) and the potential energy will be at its maximum. This occurs at the initial height. Here, the total energy is equal to the potential energy.


What is the effect of power factor greater than unity on energy bill?

Power factor cannot exceed unity!


Under what circumstances can the terminal potential difference of a battery exceed its emf?

"The potential difference between the terminals of a battery will equal the emf of the battery when there is no current in the battery. At this time, the current though, and hence the potential drop across the internal resistance is zero. This only happens when there is no load placed on the battery-that includes measuring the potential difference with a voltmeter! The terminal voltage will exceed the emf of the battery when current is driven backward through the battery, in at its positive terminal and out at its negative terminal." Raheel Ahmed Quaid i Azam University Islamabd Physics Dept


How can you obtain three time voltage across potential coil of wattmeter?

The voltage applied to the voltage coil of a wattmeter must not exceed the voltage rating of that coil.


What is skill gaps?

A skill gap is the difference between an employee's or potential employee's current skills vs. the skills necessary to meet or exceed expectations of the job.