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Water is flowing in a river at 2.5 m/s. The river is 40m wide with an average depth of 6.0m. Compute the power available from water current.

Water is flowing in a river at 2.5 m/s. The river is 40m wide with an average depth of 6.0m. Compute the power available from water current.

Grade:12

1 Answers

Har Simrat Singh
42 Points
9 years ago

force = mdv/dt or vdm/dt 

as mass = density x volume = rho x area x length = rho x ax x

dm/dt= rhox area x v (dx/dt = v)

force = rho x a x v^2

power = force x velocity

= rho x a x v^3

= 1ooox (40x 6) x (2.5)^3

=3750 kW

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