Answer:
t = 300 seconds
Explanation:
Given that,
The power output of the motor, P = 1.5 kW
Energy transferred = 450 000 J
Power is given by work done per unit time. So,
[tex]P=\dfrac{W}{t}\\\\t=\dfrac{W}{P}\\\\t=\dfrac{450 000}{1.5\times 10^3}\\\\t=300\ s[/tex]
So, it will take 300 seconds for the motor.
