A swimmer going downstream overcame a float at a point A, one hour latter it turned back and after some time passed the float at a distance of 6 km from the point A. the speed of flow of river is same everywhere. Find kinetic energy per unit volume of water.

Q: A swimmer going downstream overcame a float at a point A, one hour latter it turned back and after some time passed the float at a distance of 6 km from the point A. the speed of flow of river is same everywhere. Find kinetic energy per unit volume of water. (Density of water = 1000 kg/m^3)

(a) 347.2 J/m^3

(b) 200 J/m^3

(c) 380.6 J/m^3

(d) 960 J/m^3

Ans: (a)