Explanation:
Power is defined as the rate at which work is done in per unit time.
Mathematically, [tex]Power = \frac{Work}{Time}[/tex]
It is given that work done by engine is 4,560,000 J and time is 20 minutes.
There is 60 seconds in 1 minute. So, convert minutes into seconds as follows.
[tex]20minutes \times \frac{60 seconds}{minute}[/tex]
= 1200 seconds
Calculate power output of the engine as follows.
[tex]Power = \frac{Work}{Time}[/tex]
= [tex]\frac{4,560,000 J}{1200 sec}[/tex]
= 3800 J/s
or, = 3800 Watt
Therefore, the power output of the engine is 3800 Watt.
