The unit of potential energy is

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The unit of potential energy is

A

$gm\;(cm/{\sec ^2})$

B

$gm\;{(cm/\sec )^2}$

C

$gm\;(c{m^2}/\sec )$

D

$gm\;(cm/\sec )$

The unit of potential energy is

Potential energy $ = mgh = g\left( {\frac{{cm}}{{{{\sec }^2}}}} \right)cm = g{\left( {\frac{{cm}}{{\sec }}} \right)^2}$