A river is flowing with a velocity of 4ms−1. If density of water is 1gcm−3, the kinetic energy of each cubic meter of water is
8J
4J
8KJ
10KJ
KE=12mv2=13×V×ρ×v2KE=12ρv2×V=12×1×1000×42=12×1000×16=8KJ