Answer to Question #74533 in Mechanical Engineering for Khalid

Question

A lift cage of mass 826 kg accelerates uniformly upwards from rest to a velocity of 7 ms−1
whilst travelling a distance of 36 m. The frictional resistance to motion is 244 N. Making
use of the principle of conservation of energy, determine:

i) The work done
ii) The tension in the lifting cable
Iii) The average power developed