<Tr> <Th> SI base units </Th> <Td> kg ⋅ m ⋅ s </Td> </Tr> <Tr> <Th> CGS units </Th> <Td> 7007100000000000000 ♠ 1 × 10 erg s </Td> </Tr> <P> The watt (symbol: W) is a unit of power . In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer . In dimensional analysis it is described by M L 2 T − 3 (\ displaystyle (\ mathsf (ML)) ^ (2) (\ mathsf (T)) ^ (- 3)). </P> <P> When an object's velocity is held constant at one meter per second against a constant opposing force of one newton, the rate at which work is done is 1 watt . </P>

One joule is equal to how many watts