A force does 100 J of work in 4 s. What is its average power?

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Multiple Choice

A force does 100 J of work in 4 s. What is its average power?

Explanation:
Power is the rate at which work is done, so it equals work divided by the time over which the work is done. With 100 joules of work in 4 seconds, the average power is 100 J ÷ 4 s = 25 J/s, which is 25 watts. This illustrates how power scales with time: the same amount of work done more quickly means more power, while doing it more slowly means less power.

Power is the rate at which work is done, so it equals work divided by the time over which the work is done. With 100 joules of work in 4 seconds, the average power is 100 J ÷ 4 s = 25 J/s, which is 25 watts. This illustrates how power scales with time: the same amount of work done more quickly means more power, while doing it more slowly means less power.

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