Which of the following gives the correct units for power?

PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

Which of the following gives the correct units for power? (1)

\text{kg m s}^{-2}

(2)

\text{kg m}^2\text{ s}^{-2}

(3)

\text{kg m}^2\text{ s}^{-3}

(4)

\text{kg m}^3\text{ s}^{-3}