Solution:
The power is given by formula:
[tex]Power = \frac{work}{time}[/tex]
From given,
Work = 1500 J
Power output = 350 W
To find: Time
Substituting the values in given formula:
[tex]350 = \frac{1500}{time}\\\\time = \frac{1500}{350}\\\\time = 4.285[/tex]
Thus it takes 4.285 second to exert 1500 J of work if power output is 350 W