A) \[Mgd/4\]
B) \[3\,Mgd/4\]
C) \[-\,3\,Mgd/4\]
D) \[Mgd\]
Correct Answer: C
Solution :
\[T\text{ }=\text{ }Mg,\text{ }F=Ma\text{ }=\text{ }Mg/4\] Net force \[=\,\,\text{Mg/4}-Mg=-\,\text{3}\,\,\text{Mg/4}\] Work done \[=-\text{3}\,\,\text{Mg}\,\text{d/4}\]You need to login to perform this action.
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