Kinetic Energy is the energy that is completely dependent on objects’ momenta, regardless of their positions. Potential Energy is the energy that is completely dependent on the objects’ positions, regardless of their momenta. Note that both of them depend on mass and possibly also time, depend on the situation.
Think about them as simple ways to breaking out energy into 2 convenient mathematical terms. Neither of them are absolute, they depends on your perspective. What look like kinetic energy from one perspective can become potential energy from another perspective, or even disappear entirely.
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