Estimate the thrust needed from the propeller to hold the boat stationary. cif.

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter8: Centroids And Distributed Loads
Section: Chapter Questions
Problem 8.76P: A 6-in. diameter hole is drilled in the conical frustum. Calculate the volume and the surface area...
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3. The hydraulic dredge shown below is used to dredge sand from a river bottom.
Estimate the thrust needed from the propeller to hold the boat stationary. Assume the
specific gravity of the sand/water mixture is SG = 1.4.
9 ft
Prop
30 ft/s
30°
2-ft diameter 1
Transcribed Image Text:3. The hydraulic dredge shown below is used to dredge sand from a river bottom. Estimate the thrust needed from the propeller to hold the boat stationary. Assume the specific gravity of the sand/water mixture is SG = 1.4. 9 ft Prop 30 ft/s 30° 2-ft diameter 1
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