Questions
A ladder 'AB' of weight 300N and length 5m is lying on a horizontal surface. Its centre of gravity is at a distance of '2m' from end A. A weight of 80N is attached at end B. The work done in raising the ladder to the vertical position with end 'A' in contact with the ground is,
detailed solution
Correct option is B
W = mgh + Mghcm = (80 x 5 + 300 x 2) JW = 400 + 600 = 1000 JTalk to our academic expert!
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