Understanding Power

Power is the rate at which work is done. It's measured in watts (W).

Formula

Power (P) = Work (W) / Time (t)

Applying the Formula

* Work (W) = 1500 joules

* Time (t) = 30 seconds

Power (P) = 1500 joules / 30 seconds

Power (P) = 50 watts

Answer: The power of the machine is 50 watts.