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Question: 1 / 400

If 100 joules of work is done in 5 seconds, what is the power output?

20 Watts

To determine the power output when 100 joules of work is done over a period of 5 seconds, you would use the formula for power, which is defined as the amount of work done divided by the time taken.

Power (P) can be calculated using the formula:

\[ P = \frac{W}{t} \]

where:

- \( P \) is the power in watts,

- \( W \) is the work in joules, and

- \( t \) is the time in seconds.

Substituting the given values into the formula:

\[ P = \frac{100 \text{ Joules}}{5 \text{ seconds}} = 20 \text{ Watts} \]

Thus, the power output is 20 Watts. This means that for every second during the 5 seconds of work, an average power output of 20 watts was produced. Understanding this relationship is crucial, as it connects the concepts of work, energy, and time in physics, highlighting how power measures the rate at which work is done.

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25 Watts

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