A service lift in a warehouse is designed to raise a 600 kg load through a vertical…
PHYSICS · Subjective · CBSE · Physics · Work and Energy · Work and Energy
Problem
A service lift in a warehouse is designed to raise a 600 kg load through a vertical height of 15 m in 25 s.
(i) Calculate the mechanical power that the lift motor must supply, assuming 100 % efficiency.
(ii) Express the power obtained in part (i) in horsepower.
(iii) If the lift motor is actually rated at 25 hp, determine the percentage of its rated power that is being utilised in this operation.