A) \[\frac{L}{m}\]
B) \[\frac{L}{2m}\]
C) \[\frac{4L}{m}\]
D) \[\frac{2L}{m}\]
Correct Answer: B
Solution :
\[\frac{d\,A}{dt}\,\,=\,\,\,\frac{L}{2\,m}\]
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