Question

How much time is needed for a 15,000 W engine to do 1,800,000 J of work? (Power: P = W/t) 0.008 s 8 s 120 s 1,785,000 s

Answer 1

Answer: 120s

Explanation:

Answer 2

By definition, the power is given by:

`P = (W)/(t)`
By definition, the power is given by:
Where,
W: Work done
t: time
Clearing the time we have:

`t = (W)/(P)`
Substituting values we have:

`t = (1800000)/(15000)`
Making the corresponding calculations we have:

`t = 120s`
Answer:
is needed for a 15,000 W engine to do 1,800,000 J of work about:

`t = 120s`