Which of the following units is equivalent to the watt?
A
kgms-2
B
kgm2s-3
C
kgm2s-2
D
kgm2s-1
Verified Correct Answer: B.
Physical Principles & Numerical Solution
\(Power = \frac{\text{Work done}}{time}\)
= \(\frac{Force \times distance}{time}\)
= \(\frac{mass \times acceleration \times distance}{time}\)
= \(\frac{kg \times m \times m}{s^{2} \times s}\)
= \(kgm^{2} s^{-3}\)
Source: Myschool Past Questions Archive (Record #35649)