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Physics

General

Easy

Question

The centre of mass of a non uniform rod of length L. Whose mass for unit length varies as $rho equals fraction numerator k times x squared over denominator L end fraction$ where k is a constant and x is the distance of any point from one end is (from the same end)

$(\frac{3}{4}) L$
$(\frac{1}{4}) L$
$(\frac{1}{6}) L$
$(\frac{2}{3}) L$

The correct answer is: $open parentheses 3 over 4 close parentheses L$

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