Answer: 3 seconds
Step-by-step explanation:
The equation for Power is P=W/tΔ
P= Power(W)
W= Work(J)
t= change in time
So for this equation we have 300=900/t where we need to solve for t which we can do by using algebra
300=900/t
t=900/300
t=3
so t= 3 seconds (s)