49 The velocity of the surface layer of water in a river of

Last updated: 6/9/2023

49 The velocity of the surface layer of water in a river of depth 20 m is 5 m s The shearing stress between the surface layer and the bottom layer is n 10 poise 2 5 10 N m b 3 x 10 N m d 4 x 10 N m a c 3 5 x 10 5 N m