Question on: WAEC Physics - 2013
Which of the following units is equivalent to the watt?
A
kgms-2
B
kgm2s-3
C
kgm2s-2
D
kgm2s-1
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Correct Option: B
\(Power = \frac{\text{Work done}}{time}\)
= \(\frac{Force \times distance}{time}\)
= \(\frac{mass \times acceleration \times distance}{time}\)
= \(\frac{kg \times m \times m}{s^{2} \times s}\)
= \(kgm^{2} s^{-3}\)
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