Question

A laborer does 14,400 J of work. How much power does he spend if he works for 2 hours continuously?

Answer 1

Answer:

Power = work / time

Where work is in joules and time in seconds

Here, work = 14,400J

Time = 2 hours = 7200 seconds

Power = 14,400 / 7200 = 2 watt

Answer 2

Answer:

Power = work / time

Work is in joules and time in seconds

So, work = 14,400J

Time = 2 hours = 7200 seconds

Power = 14,400 / 7200 = 2 watt