Physics 9702 · AS & A Level · SI units

SI units — practice question

How is the unit watt expressed using SI base units?

  • A$\text{J s}^{-1}$
  • B$\text{m}^2\,\text{kg s}^{-1}$
  • C$\text{m}^2\,\text{kg s}^{-3}$
  • D$\text{N m s}^{-1}$

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