. 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,
1) 500J 2) 1000J 3) 1150J 4) 1900J
Answers
Answered by
45
Answer:
workdone to raising 300N to 2 m
W = FS
= 300×2= 600J
workdone to raising 80N to 5m height
w= fs
= 80×5 = 400N
Total workdone = 600J+400J= 1000J
Answered by
1
Answer:
workdone to raising 300N to 2 m
W = FS
= 300×2= 600J
workdone to raising 80N to 5m height
w= fs
= 80×5 = 400N
Total workdone = 600J+400J= 1000J
Explanation:
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