A river of salty water is flowling with a
velocity 2 m/sec. If the density of the water
is 1.2 gm/c.c., then the kinetic energy of each
of cubic metre of water is
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Answer:
2400 J of each cubic metre of water
Explanation:
Kinetic energy = 0.5mv²
= 0.5(volume × density)v²
Kinetic energy/volume = 0.5 × density × v²
= 0.5 × 1.2 g/cm³ × (2 m/s)²
= 0.5 × 1.2 × 10³ kg/m³ × 4 m²/s²
= 2400 J / m³
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