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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.
Wiki User
∙ 13y ago
The potential energy of a 20-kg rock depends on its height above the ground and the gravitational acceleration. The potential energy formula is PE = mgh, where m is the mass of the rock (20 kg), g is the acceleration due to gravity (9.81 m/s^2), and h is the height above the ground.
Wiki User
∙ 11y agoPlease 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.
Wiki User
∙ 13y agoIt's 931 joules for each meter the rock sits above the reference elevation.
Wiki User
∙ 13y agoUse 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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Does a rock have potential energy?
Yes, a rock can have potential energy when it is lifted above the ground. The potential energy is stored in the rock due to its position in relation to the ground, and it can be converted into kinetic energy when the rock falls.
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
The energy of position such as a rock on a hill is?
The energy of position for a rock on a hill is potential energy, specifically gravitational potential energy. This energy is stored in the rock due to its position above the ground and can be converted into kinetic energy if the rock rolls down the hill.
What type of energy is stored in a rock?
Potential energy is stored in a rock due to its position or composition. This energy can be released when the rock falls or breaks apart.
Does a rock have potential energy on a hill?
Yes, a rock on a hill has gravitational potential energy due to its position above the ground. This potential energy can be converted into kinetic energy if the rock rolls down the hill.
What is the mass of a skater if the potential energy is 600j velocity is 5ms height is 6?
To find the mass of the skater, we can use the formula for potential energy: Potential energy = mass x gravity x height. Given that potential energy is 600 J, height is 6 m, and gravity is 9.8 m/s^2, we can rearrange the formula to solve for mass: mass = Potential energy / (gravity x height). Plugging in the values, we find the mass to be approximately 10 kg.
Does a rock have potential energy?
Yes, a rock can have potential energy when it is lifted above the ground. The potential energy is stored in the rock due to its position in relation to the ground, and it can be converted into kinetic energy when the rock falls.
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
A force that adds potential energy to rock until the rock changes is?
The force that adds potential energy to a rock until the rock changes is gravity. As the rock is lifted against the force of gravity, potential energy is stored in the rock. Once the rock falls or is released, this potential energy is converted into kinetic energy, causing the rock to change position or state.
The energy of position such as a rock on a hill is?
The energy of position for a rock on a hill is potential energy, specifically gravitational potential energy. This energy is stored in the rock due to its position above the ground and can be converted into kinetic energy if the rock rolls down the hill.
What type of energy is stored in a rock?
Potential energy is stored in a rock due to its position or composition. This energy can be released when the rock falls or breaks apart.
Does a rock have potential energy on a hill?
Yes, a rock on a hill has gravitational potential energy due to its position above the ground. This potential energy can be converted into kinetic energy if the rock rolls down the hill.
A rock on top of a mountain has what energy?
Potential energy. The rock has potential energy due to its position at a height above the ground, which can be converted into kinetic energy as it falls.
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.
What type of potential energy does a rock perched on the edge of a cliff have?
The rock perched on the edge of a cliff has gravitational potential energy due to its position above the ground. This potential energy is stored in the rock as a result of its vertical distance from the ground and can be converted into kinetic energy if the rock 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
