Question

A machine does 1,400 joules of work in 30 seconds. What is the power of this machine?

Answer 1

power =

$\frac{1400}{30} = 46.6 \: watt$

Answer 2

Solutions:

Power = Work done/Time taken

Here, Work done = 1400 J

And, Time taken = 5 s

So, putting these values in the above formula, we get;

Power = 1400 J/30 s

Power = 46.6 J/s or 46.6 W