Thomas R. answered • 05/03/18

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I don't know what precisely you are asking about them, so let's start with the basics:

Kinetic energy: the energy of motion. This is why the formula for kinetic energy is:

K

_{e}= mV² / 2 -- You need mass and motion to have kinetic energy.Potential energy: energy stored in an object, usually by its relationship to a gravitational field. This is why the formula is:

P

_{e}= m*g*h -- Note that you still require mass, but instead of motion, you require a gravitational field and at least some distance from its source.Neither one prevents the other. If you toss a ball in the air, it slowly transforms much of its kinetic energy into potential energy until it stops rising. When it falls, it begins with purely potential energy that slowly returns to kinetic form. At any given time, it will probably have a mix of the two. Some energy should be lost to friction with the air, surrendering a little of that oomph to other forms like heat.