As the stone falls, it possesses potential energy due to its height above the ground. This potential energy is then converted into kinetic energy as the stone accelerates towards the ground. At any point during the fall, the stone possesses both potential and kinetic energy simultaneously.
As the stone falls off the tabletop, its potential energy decreases while its kinetic energy increases. At the moment it leaves the tabletop, it has maximum potential energy and zero kinetic energy. As it falls, its potential energy is converted into kinetic energy until it reaches the ground and all potential energy is transformed into kinetic energy.
As the stone falls, its potential energy decreases due to the decrease in height above the ground. At the same time, its kinetic energy increases as it gains speed while falling. The total mechanical energy (sum of potential and kinetic energy) of the stone remains constant in the absence of external forces like air resistance.
Sitting on the table the stone has potential energy, relative to the ground, of weight times height, mgh. It has zero kinetic energy so its total energy is E = 0 + mgh. When it begins falling it loses potential energy (as it loses height) and gains kinetic energy ( as it picks up speed) so the sum stays the same as initially E = KE + PE = mgh. Just before it hits the ground all of its potential energy is gone and has been transformed into kinetic energy. So the kinetic energy at the bottom (1/2)mv^2 will equal the potential energy at the top.
When a falling stone hits the ground, its kinetic energy is mostly converted into sound energy, heat energy, and some energy used to break pieces of the ground.
The stone has potential energy due to its position above the ground. As gravity pulls the stone down, this potential energy is converted to kinetic energy.
A falling stone.
No. For example a falling stone is converting potential energy of gravitational attraction into kinetic energy, and there is no elastic energy.
As the stone falls off the tabletop, its potential energy decreases while its kinetic energy increases. At the moment it leaves the tabletop, it has maximum potential energy and zero kinetic energy. As it falls, its potential energy is converted into kinetic energy until it reaches the ground and all potential energy is transformed into kinetic energy.
As the stone falls, its potential energy decreases due to the decrease in height above the ground. At the same time, its kinetic energy increases as it gains speed while falling. The total mechanical energy (sum of potential and kinetic energy) of the stone remains constant in the absence of external forces like air resistance.
Sitting on the table the stone has potential energy, relative to the ground, of weight times height, mgh. It has zero kinetic energy so its total energy is E = 0 + mgh. When it begins falling it loses potential energy (as it loses height) and gains kinetic energy ( as it picks up speed) so the sum stays the same as initially E = KE + PE = mgh. Just before it hits the ground all of its potential energy is gone and has been transformed into kinetic energy. So the kinetic energy at the bottom (1/2)mv^2 will equal the potential energy at the top.
Sitting on the table the stone has potential energy, relative to the ground, of weight times height, mgh. It has zero kinetic energy so its total energy is E = 0 + mgh. When it begins falling it loses potential energy (as it loses height) and gains kinetic energy ( as it picks up speed) so the sum stays the same as initially E = KE + PE = mgh. Just before it hits the ground all of its potential energy is gone and has been transformed into kinetic energy. So the kinetic energy at the bottom (1/2)mv^2 will equal the potential energy at the top.
When a falling stone hits the ground, its kinetic energy is mostly converted into sound energy, heat energy, and some energy used to break pieces of the ground.
The summation of potential and kinetic energy of an object is constant. When the potential energy of an object decreases the kinetic energy increases. Assume a falling stone from some high point above ground. At the beginning, the potential energy is maximum while the kinetic energy is minimum or zero. While the stone is falling, the kinetic energy increases while the potential energy increases (with the summation of both is constant). When the stone reaches the ground, the kinetic energy is maximum and the potential energy is zero.
The stone has potential energy due to its position above the ground. As gravity pulls the stone down, this potential energy is converted to kinetic energy.
The stone would have a combination of potential and kinetic energy halfway down the hill. The potential energy would decrease as the stone moves lower, while the kinetic energy would increase as the stone gains speed.
A pendulum hanging still at its highest point (potential energy) is released, converting its potential energy to kinetic energy as it swings back and forth. An object held above the ground (potential energy) is dropped, converting its potential energy to kinetic energy as it accelerates towards the ground.
At halfway (50m) to the ground, the stone's potential energy is (mgh = 3kg \times 9.8m/s^2 \times 50m = 1470J). At this point, the kinetic energy is equal to the potential energy: (KE = PE = 1470J).