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Potential energy is defined as the energy possessed by a body due to its position in the gravitational field.

Approximately it will be got by using the expression mgh.

m - the mass in kg

g-acceleration due to gravity

and h - the height above the surface of the earth

The other to find the potential energy so precisely is using the expression

G Mm/(R+h)2 or replacing GM by gR2 we get mg(R/R+h)2

Any way the details about h is not given. So finding the potential energy will be in complete.

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13y ago
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11y ago

Please use the formula for gravitational potential energy: PE = mgh. That is, potential energy is the product of mass, gravity and height. Use 9.8 (m/s2) for gravity. Since you are using SI units consistently, the answer will be in joules.

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13y ago

It's 931 joules for each meter the rock sits above the reference elevation.

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13y ago

Use the formula for potential energy: PE = mgh (potential energy = mass x gravity x height). As you see, it depends on the height, too, not just on the mass.

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Q: What is the potential energy of a 20-kg rock?
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What is the mass of a skater if the potential energy is 600j velocity is 5ms height is 6?

20kg


What is the potential energy of a 20kg rock perched at the top of a hill with a height of 100 meters?

PE = mgh = 20 kg x 9.8 m/s2 x 100 m = 19,600 J


Does a rock have potential energy?

Yes rocks do have potential energy. Potential energy is defined as energy stored within a physical system. It is called potential because it has the potential to be converted into other forms of energy, such as kinetic energy which can do work in the process. This means that a rock can have potential energy as simple as, a rock held at an elevation. If dropped it's potential energy is then being converted to kinetic energy.


What is the mass of an object with a potential energy of 980 J and a height of 5 meters?

PE=mgh 980=mx9.81x5 m=20kg


Examples of potential energy?

unlit match a rock held in your hand.


The energy of position such as a rock on a hill is?

Potential energy


What type of energy is stored in a rock?

Potential energy.


What type of potential energy does a rock perched on the edge of a cliff have?

A rock at the edge of a cliff has potential energy. This energy may be converted to kinetic energy by the force of gravity if it falls off the cliff.


Is a rock potential or kinetic energy?

It has potential energy but when it is in movement it will possess kinetic energy


Why is a rock on the top of a hill kinetic energy?

A rock on top of a hill has potential energy, not kinetic energy. If it starts rolling down the hill then the potential energy transforms to kinetic energy.


What type of energy is a rock resting on hill?

Potential Energy


The energy of position such as a rock on a hill is what energy?

Gravitational energy Potential energy