How is power calculated if work is expressed in joules and time in seconds?

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Power is defined as the rate at which work is done or energy is transferred over time. The formula to calculate power when work is measured in joules and time is measured in seconds is given by the equation:

[

\text{Power} = \frac{\text{Work}}{\text{Time}}

]

In this case, since work is expressed in joules and time in seconds, the calculation involves dividing the joules (the amount of work done) by the seconds (the time over which that work is performed). This results in a power measurement expressed in watts (where 1 watt is equal to 1 joule per second). Therefore, the correct method to calculate power in this context is by taking the total work done in joules and dividing that number by the time taken in seconds.

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