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  • If  for a rod having at its one end at the origin then find the location of C.O.M (I - Inertia of moment)<div c

If I = 3x^2+x for a rod having at its one end at the origin then find the location of C.O.M (I - Inertia of moment)

Option: 1

\frac{1}{3}


Option: 2

\frac{-1}{3}


Option: 3

\frac{1}{6}


Option: 4

\frac{-1}{6}


Answers (1)

Moment of inertia is minimum when the axis passes through COM i.e. \frac{dI}{dx}=0

0=\frac{dI}{dx}=\frac{d(3x^+x)}{dx}=6x+1

x=\frac{-1}{6}

Posted by

Ramraj Saini

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