Water falls from a height of `` 60\, m `` at the rate of `` 15\, kg / s `` to operate a turbine. The losses due to frictional force are `` 10 \% `` of the input energy. How much power is generated by the turbine? `` \left(g=10\, m / s ^{2}\right) ``
(A)10.2 kW
(B)8.1 kW
(C)12.3 kW
(D)7.0 kW