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Water is flowing in a river at 2 ms^(-1)...

Water is flowing in a river at `2 ms^(-1)`. The river is `50 m` wide and has an average depth of `5 m`. The power available from the current in the river is (Density of water `= 1000 kg m^(3)`

A

0.5 MW

B

1 MW

C

1.5 MW

D

2 MW

Text Solution

Verified by Experts

The correct Answer is:
B
Power=Kinetic energy of water flowing per second
`=1/2 xx ` area of cross-section x density x `("velocity")^3`
`=1/2 xx50xx5xx1000xx2^3 W = 10^6 W=1 MW`
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