5.42. Derive Eq. 6.29. It is suggested that you use the coordinates shown in Fig. 6.27. Here the flow is in the x direction from left to right, and the slit extends a distance / in the z direction and / >> h. Choose as your element for the force balance a piece symmetrical about the y axis (other choices are possible but lead to more difficult mathematics). Hint: This is a repeat of the derivation of Eq. 6.8 in a different geometry. Simply follow that derivation, changing the geometry. y=-1/2- y=-=h y=0 · Δι FIGURE 6.27 Suggested dimensions for Prob. 6.42.

5.42. Derive Eq. 6.29. It is suggested that you use the coordinates shown in Fig. 6.27. Here the flow is in the x direction from left to right, and the slit extends a distance / in the z direction and / >> h. Choose as your element for the force balance a piece symmetrical about the y axis (other choices are possible but lead to more difficult mathematics). Hint: This is a repeat of the derivation of Eq. 6.8 in a different geometry. Simply follow that derivation, changing the geometry. y=-1/2- y=-=h y=0 · Δι FIGURE 6.27 Suggested dimensions for Prob. 6.42.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter9: Moments And Products Of Inertia Of Areas

Section: Chapter Questions

Problem 9.30P

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