SI unit of energy is:

k g m^{2} s^{- 2}

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k g m^{- 1} s^{2}

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k g m^{2} s^{- 1}

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k g m^{2} s^{2}

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Solution

The correct option is A $k g m^{2} s^{- 2}$
The power required to do work by the application of force is energy.
Energy has same unit as that of work.
$∴$ S.I unit of Energy is $k g m^{2} s^{- 2}$

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