abhishek dubey
Last Activity: 9 Years ago
inthe following case volume of water striking the wall per sec=av (a=cross section of the cylinder,v=velocity of water ie length of cyl striking per sec.
but in this problem as water is making angle
,volume of water striking per sec=av sin?
mass striking /sec=avpsin?
as bouncing back, so momentum change /sec=force=2mv ;m=mass v= vel
=2av2 pcostheta.