A coin is tossed up. What energy transformations occur when a coin is raised? when it falls? at the moment of hitting the asphalt?

Let’s start answering all the questions in order. I immediately neglect the friction of the coin on the air when tossing it. I take the ground (asphalt) as the zero reference level.
1) By tossing a coin, we give it the maximum speed, and accordingly the maximum kinetic energy. With the climb, the kinetic energy turns into potential energy (the height increases and the speed decreases), and at the maximum height, one maximum potential energy remains.
2) When a coin falls, the maximum potential energy with decreasing altitude and gaining speed develops into kinetic energy.
3) At the moment of impact on the asphalt, the kinetic energy is maximum, there is no potential. Part of the kinetic energy is converted into internal energy.



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