Impact of jet on stationary flat plate & inclined plate and series of flat vanes mounted on the periphery of large wheel

Impact of jet 

on stationary flat plate & inclined plate 

and

 series of flat vanes mounted on the periphery of large wheel

This video explains the concept of impact of jet on stationary flat plate & plate inclined to the axis of the jet. Impact of jet is nothing but the impressed force by the jet of water on the plate. It can be calculated using the Newton's second law of motion

 This video explains the impact of jet on series of flat vanes mounted on the periphery of large wheel. The derivation includes the expression for efficiency & condition for maximum efficiency .