If \[t=\frac{{{v}^{2}}}{2}\],then \[\left( -\frac{df}{dt} \right)\]is – McqOptions

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1.	If \[t=\frac{{{v}^{2}}}{2}\],then \[\left( -\frac{df}{dt} \right)\]is equal to, (where f is acceleration) [MP PET 1991]
A.	\[{{f}^{2}}\]
B.	\[{{f}^{3}}\]
C.	\[-{{f}^{3}}\]
D.	\[-{{f}^{2}}\]
Answer» C. \[-{{f}^{3}}\]

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