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Answer :
The mass of the elevator in Kilograms is 54.24 Kg.
The power applied by the elevator on the mass is 1104 W.
The height to which the mass is taken is 135m in the time period of 65 seconds.
We know,
Power applied is equal to the work done per unit time,
So,
P = MgH/t
Where, P, M, g, H and t are Power, mass, acceleration due to gravity, height and time respectively.
Now, putting values,
1104 = M x 9.8 x 135 / 65
M = 54.24 Kg.
So, the mass of the elevator is 54.24 kg.
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