Question

Mecánica de fluidos Problemas A 50-mm-diameter jet of water impacts Figure 4.78. The vane has a mass of 90kg, and it deflects the jet through a 55° angle. The vane is constrained to move in the direction of the incoming jet, and there is no force opposing the motion of the vane. Determine the acceleration of the vane when it is first released. Assume water at 20°C. a vane at a velocity of 20 m/s as shown in 550 20 m/s Moving vane 50 mm Figure 4.78: Motion of a vane caused by a water jet A horizontal water jet with a flow rate of V and cross- 6-93 sectional area of A drives a covered cart of mass m along a hala at the

a 50-mm-diameter jet of water impacts a vane at a velocity of 20 m/s as shown in Figure 4.78. The vane has a mass of 90 kg, and it deflects the jet through a 55° angle. The vane is constrained to move in the direction of the incoming jet, and there is no force opposing the motion of the vane. Determine the acceleration of the vane when it was first released. Assume water at 20°C

Answer 1

No=20S 3.K,0-550 uninos = P Given Sol.torce Tmparted by water on Vare fnin LVo-V, Coso 4 f= lo3x0.osx 202L1-Cosss] f 334.91 acceleration of vane f= ma 334.91 2 a3.72mIs