Question

Force exerted by a jet on a moving plate happens in how many cases?

(a) 3 cases

(b) 2 cases

(c) 1 case

(d) Nil

This question was addressed to me in an internship interview.

My doubt stems from Force Exerted by a Jet on a Stationary Flat Inclined Plate in division Impact of Jets and Jet Propulsion of Fluid Mechanics

Answer 1

Right option is (a) 3 cases

For explanation I would say: Force exerted by a jet on a moving plate happens in three cases. The three cases are classified depending on their position. The three cases are when the plate is vertical, plate is inclined and plate is curved with respect to the jet.