Table of Contents
What is the potential energy of 2 kg?
The potential energy of a body of mass 2kg raised to a height of 2m is 40J.
What is the correct potential energy formula?
The formula for potential energy depends on the force acting on the two objects. For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.
How do you calculate work from potential energy?
If the object is lifted straight up at constant speed, then the force needed to lift it is equal to its weight mg. The work done on the mass is then W = Fd = mgh. We define this to be the gravitational potential energy (PEg) put into (or gained by) the object-Earth system.
What is the potential energy of an object resting on the ground?
Simplified, this formula can be written as: Potential Energy = mgh, where m is the mass, measured in kilograms; g is the acceleration due to gravity (9.8 m/s^2 at the surface of the Earth); and h is the height, measured in meters.
What is the potential energy of a 2 kg plant that is on a windowsill 1.3 m high?
Potential Energy=mgh=2×9.8×1.3=25.48.
What is the potential energy of a body of mass 250 kg is at a height of 30 meter?
Answer: 7500 is the answer of this question….
What is work potential energy?
The product of force and displacement gives the work done, which is equal to the gravitational potential energy, thus. The more formal definition is that potential energy is the energy difference between the energy of an object in a given position and its energy at a reference position.
Is a spring potential energy?
Concept of Spring Potential Energy Therefore, spring exerts an equal as well as an opposite force on a body that compresses or stretches it. It is the energy, stored in a compressible or stretchable object like a spring or rubber band or molecule. It’s another name is Elastic potential energy.
Is there potential energy at rest?
An object at rest has no kinetic energy. But depending on its position, it will have a form of potential energy. When you hold a rock above the ground, it has gravitational potential energy.