The time needed for the elevator to lift the load is approximately 4.31 seconds.
Power is simply the amount of energy transferred per unit time.
It is expressed as;
P = W / t
Where P is power, W is work done and t is time.
Given the data in the question;
Plug the given values into the above formula and solve for t
P = W / t
P = W / t
t = W / P
t = 56000J / 13000J/s
t = 4.31 s
Therefore, the required time is 4.31 seconds.
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