Multiple choice question XXXVII — task. Science CBSE, Class 9.

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A \(4\ kg\) mass and \(1\ kg\) mass are moving with equal linear momenta. The ratio of their kinetic energies is

\(1\ :\ 2\)
\(1\ :\ 4\)
\(2\ :\ 1\)
\(4\ :\ 9\)

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