A) 190 J
B) 250 J
C) 285 J
D) 475 J
Correct Answer: B
Solution :
The work required to raise the ladder from horizontal to vertical position is given by Work done, \[W=mg{{h}_{cm}}+mgh\] \[=150\times 1+40\times 2.5\] \[=150\times 100=250\,J\]You need to login to perform this action.
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