The velocity distribution for laminar flow between parallel plates is given by u/umax=1-(2y/h)^2 where h is the distance separating the plates and the origin is placed midway between the plates

Mechanical Engineering Jan 28, 2021

The velocity distribution for laminar flow between parallel plates is given by u/umax=1-(2y/h)^2 where h is the distance separating the plates and the origin is placed midway between the plates. Consider flow of water at 15°C with maximum speed of 0.05 m/s and h = 1 mm. Calculate the force on a 1 m2 section of the lower plate and give its direction. 2.31 Explain how an ice skate interacts with the ice surface. What mechanism acts to reduce sliding friction between skate and ice?