Sparky is on the university speed ice skating team. When crossing the finish line Sparky wants to show off and come across the finish line on one skate with a velocity of 35 ft/sec (V). Sparky weighs 150 lbf. Sparky’s weight is supported by a thin liquid film of water melted by the pressure of the skate blade. If the blade is 13 inches long and 0.125 inches wide estimate Sparky’s deceleration resulting from viscous shear in a water film of thickness of 0.0000575 inches (h). Neglect all end effects. Evaluate all properties at 32°F. Suggest creating a simple schematic of the problem using V, h, and the viscous shear stress (not required).

Sparky is on the university speed ice skating team. When crossing the finish line Sparky wants to show off and come across the finish line on one skate with a velocity of 35 ft/sec (V). Sparky weighs 150 lbf. Sparky’s weight is supported by a thin liquid film of water melted by the pressure of the skate blade. If the blade is 13 inches long and 0.125 inches wide estimate Sparky’s deceleration resulting from viscous shear in a water film of thickness of 0.0000575 inches (h). Neglect all end effects. Evaluate all properties at 32°F. Suggest creating a simple schematic of the problem using V, h, and the viscous shear stress (not required).

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.17P: A man weighs 170 lb on the surface of the earth. Compute his weight in an airplane flying at an...

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