The so-called kinetic energy, in simple terms, refers to the energy that an object has due to movement. Numerically equal to \(\frac{1}{2}Mv^2\). Kinetic energy is a kind of energy. Its unit under the international unit system is Joule (J), referred to as coke. It should be noted that kinetic energy (and the various functions corresponding to it) are scalar, that is, only the size and no direction. When summing, only the algebraic sum is calculated, and the parallelogram rule of vector (mathematical called vector) addition is not satisfied.

Kinetic energy theorem

Formula: \(Ek = \frac{1}{2} mv^2\)

Quality: \(m = \frac{Ek}{\frac{1}{2} v^2} \)

Speed: \(v^2=\frac{2Ek}{m}\)

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