Question

fluid mechanics

E (a) (b) (c) (d)

Answer 1

ANSWER :
( a ) la) labove) the length of the arrow is greater bet the outlet of the device. the velocity of theld at the outlet is greater than the velocity of the fluid at the inlet N>V, Calculate the force exerted on the pipe. Fem [v,- (-12)] = m [u, tv2 fo Here, in is the mass flow rate which is always positive and the velocity at the outlet is niegative because the direction is towards the negative xdirection Due to È being positive, the device moves towards positive x direction. the device in figure (a) will move to woords right

(b) In figurie (6), the length of the arrow is greater at the in leti ... the velocity of fluid at the outlet is lesser than the : velocity of the fluid at the inlet V ZV, V. - Vg >O calculate the force exerted on the pipe Fu (v vy) FO Due to f being positive, the device moves towards the positive x. direction, the device in fiqure (b) will move towards right (C) In figure above the length of the arrow is greater at the Inlet. But, the velocity at the outlet is vertical but not horizontal.

calculate the force exerted on the pipe. F = m [vi-o) FO Due to f being positive, the device moves towards positive x direc.com :: the device in Figure ce) will move towards the right ID In the above figure the length of the arrow is greater at outlet ... the velocity of fluid at the outlet is greater than the velocity of the Hard at the inlet N, 2 V2 vi - VLO calculate the force exerted on the pipe. F = m [v, vg FLO Due to f being negative, the device moves towards negative x direction. the device in figur (d) will move towards left