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.
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.
It's 931 joules for each meter the rock sits above the reference elevation.
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.
20kg
PE = mgh = 20 kg x 9.8 m/s2 x 100 m = 19,600 J
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.
Potential energy
Potential energy.
20kg
PE = mgh = 20 kg x 9.8 m/s2 x 100 m = 19,600 J
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.
PE=mgh 980=mx9.81x5 m=20kg
unlit match a rock held in your hand.
Potential energy
Potential energy.
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.
It has potential energy but when it is in movement it will possess 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.
Potential Energy
Gravitational energy Potential energy