A water jet strikes a triangular block resting on a stationary table and is deflected 30° as shown in Fig. B.5. The mass flow rate of the water jet is gradually increased to 30 kg/s such that the block starts to slide on the table. The mass of the block is 1.5 kg. Assuming that the weight of the water can be neglected, and the inlet and outlet velocities of the jet are the same and remain unchanged. Outlet Inlet Water jet Triangular block 30 Fig. B.5 Determine the horizontal and vertical forces against the block due to the water jet, in terms of the velocity of the water jet, V. (a) (b) If the cross-sectional area of the water jet is 40 cm', determine the velocity of the water jet and the coefficient of friction, u between the block and the table.

A water jet strikes a triangular block resting on a stationary table and is deflected 30° as shown in Fig. B.5. The mass flow rate of the water jet is gradually increased to 30 kg/s such that the block starts to slide on the table. The mass of the block is 1.5 kg. Assuming that the weight of the water can be neglected, and the inlet and outlet velocities of the jet are the same and remain unchanged. Outlet Inlet Water jet Triangular block 30 Fig. B.5 Determine the horizontal and vertical forces against the block due to the water jet, in terms of the velocity of the water jet, V. (a) (b) If the cross-sectional area of the water jet is 40 cm', determine the velocity of the water jet and the coefficient of friction, u between the block and the table.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

A water jet strikes a triangular block resting on a stationary table and is deflected
30° as shown in Fig. B.5. The mass flow rate of the water jet is gradually
increased to 30 kg/s such that the block starts to slide on the table. The mass of
the block is 1.5 kg. Assuming that the weight of the water can be neglected, and
the inlet and outlet velocities of the jet are the same and remain unchanged.
Outlet
Inlet
Water jet
Triangular block
30
Fig. B.5
(a)
Determine the horizontal and vertical forces against the block due to the
water jet, in terms of the velocity of the water jet, V.
(b)
If the cross-sectional area of the water jet is 40 cm?, determine the velocity
of the water jet and the coefficient of friction, µ between the block and the
table.

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A jet impinges on a splitter block. The incoming jet is horizontal and has a flow rate of Q1 = 8000 cm3/s and a cross-sectional area of A1 = 40 cm2. The block splits the jet in to two smaller jets. One is deflected upward by 45o, and has a flow rate of Q2 = 6000 cm3/s and a cross-sectional area of A2 = 30 cm2. The other jet is deflected downward by 45o, and has a flow rate of Q3 = 2000 cm3/s and a cross-sectional area of A3 = 10 cm2. You may assume that the pressure everywhere is equal to atmospheric pressure, and the density of the fluid is 1000 kg/m3. A)Find the horizontal momentum flux in, φ˙x,in B)Find the horizontal momentum flux out, φ˙x,out C)Find the horizontal force that the fluid exerts on the block FR,x