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Sardar Sarover Dam is built on the river...

Sardar Sarover Dam is built on the river

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`v_(m)=sqrt(v_(mv)^(2)+v_(m)^(2)+2V_(mv)V_(omega)costheta)`
`v_(m)=sqrt(v^(2)+4v^(2)-2v.2v.(1)/(2))`
`v=(v_(m))/(sqrt3)=v_(mw)`
`t=(d)/(v_(mw)costheta)=(500)/((5//sqrt3)sqrt(1-1//4))=(200xxsqrt3)/(sqrt3)=100sec`
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