Write an expression for the kinetic energy of an object.
(N/A) If a body of mass $m$ is moving with a velocity $v$,then its kinetic energy $E_k$ is given by the expression:
$E_k = \frac{1}{2}mv^2$
Its $SI$ unit is Joule $(J)$.
$E_k = \frac{1}{2}mv^2$
Its $SI$ unit is Joule $(J)$.
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