An elevator of mass is lifted vertically to a height of in .

PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

An elevator of mass 400 kg400\,\text{kg} is lifted vertically to a height of 12 m12\,\text{m} in 15 s15\,\text{s}. (i) Calculate the work done on the elevator. (ii) Calculate the average power developed by the motor (take g=9.8 m/s2g = 9.8\,\text{m/s}^2).

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