A) 0
B) 1/4
C) ½
D) 1/v
Correct Answer: D
Solution :
\[\Rightarrow 2x\frac{dx}{dt}+2y\frac{dy}{dt}=0\]; Differentiating w.r.t. t of v, we get \[2v\frac{dv}{dt}=2\] or \[\frac{dv}{dt}=\frac{1}{v}\].You need to login to perform this action.
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