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# A river of salty water is flowing with a velocity 2 m/sec. If the density of the water is $1.2\;gm/c.c$, then the kinetic energy of each cubic metre of water is

$\begin {array} {1 1} (1)\;2.4\;J & \quad (2)\;24\;J \\ (3)\;2.4\;KJ & \quad (4)\;4.8\;KJ \end {array}$

(3) 2.4 KJ