Question

Which among the following is the formula for relative velocity?

(a) V + u

(b) Vu

(c) V – u

(d) V/u

This question was addressed to me in exam.

I'd like to ask this question from Force Exerted by a Jet on a Stationary Curved Plate in division Impact of Jets and Jet Propulsion of Fluid Mechanics

Answer 1

Right answer is (a) V + u

Explanation: Absolute relative velocity of a fluid related to the jet propulsion of the ship when the inlet orifices are at right angles to the direction of the motion of the ship is given by V+u.