Which of the following units is equivalent to the watt?
- kgms-2
-
kgm2s-3
- kgm2s-2
- kgm2s-1
The correct answer is: B
Explanation
\(Power = \frac{\text{Work done}}{time}\)
= \(\frac{Force \times distance}{time}\)
= \(\frac{mass \times acceleration \times distance}{time}\)
= \(\frac{kg \times m \times m}{s^{2} \times s}\)
= \(kgm^{2} s^{-3}\)