Problem-1 on force exerted by jet on series of curved vanes

[@recepton.]

Maam you make it easy. You should continue teaching online

[@prasadmandhare5554]

THANK YOU SO MUCH FOR THIS EXAMPLE

[@prasadmandhare5554]

VERY USEFUL THANK YOU AGAIN

[@pappu1022]

Thanks mam

[@sumanhalder458]

Thank you mam

[@Saugatkhadka7]

love u

[@drbalu9373]

4 hours ago
Details
A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity
I need answer with explanation madam

[@sathishkumarvedachalam56]

Maximum efficiency is U=V1/2....we got this by differentiating d/du=0 ... write the formula for efficiency and substitute Vw1,Vw2 in terms of U and V ...then differentiating we get U=V/2 after that substitute in efficiency formula we get ( 1+cos phi)/2

[@roshenvarma1489]

Where does sin(60 - phi ) come from

[@harshalsurkar3869]

By sin rule
U2/Sin ( Beta-phi). (Beta ki value 60)
U2/sin (60-phi)

[@akshaydhengale_AD]

Sin(58.75) how❓️

[@harshalsurkar3869]

Mam Plz reply this question

[@kloplop675]

I think the efficiency is wrong

[@MEKeshuchbhakat]

Yes the efficiency is 58%

[@munishawasthi1818]

How