Question

26. If water is flowing in a pipe with speed 2 m/s then its kinetic energy per unit volume is
(1) 500 J/m3
(2) 1000 J/m
(3) 1500 J/m3
(4) 2000 J/m3

Answer 1

Answer:

formula = $\frac{\frac{1}{2}mv^{2}  }{V}$

      = $\frac{1}{2}dv^{2}$    (where d = density)

      = $\frac{1}{2}*1000*2^{2}$ (d of water =  1000)

      = 2000$J/m^{3}$

Best of luck mate !!

Answer 2

2000 is the right answer