Questions
In figure shown, a carriage P of mass 50 kg is slowly pulled up from A to B. The relevant coefficient of friction is 0.40. Then the work done is
a
10 KJ
b
23 KJ
c
25 KJ
d
28 KJ
detailed solution
Correct option is B
Work done=mgh+μmgcosθ×l =50×10×(30+0.4×45×50) Joule =23 KJTalk to our academic expert!
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