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Home / Questions / A female freestyle ice skater weighing 100 lbf glides on one skate at speed V 20 fts Her ...

A female freestyle ice skater weighing 100 lbf glides on one skate at speed V 20 fts Her weight is supported by a thin film of liquid water melted from the ice by the pressure of the skate blade

A female freestyle ice skater, weighing 100 lbf, glides on one skate at speed V = 20 ft/s. Her weight is supported by a thin film of liquid water melted from the ice by the pressure of the skate blade. Assume the blade is L = 11.5 in. long and w = 0.125 in. wide, and that the water film is h = 0.0000575 in. thick. Estimate the deceleration of the skater that results from viscous shear in the water film, if end effects are neglected.
 

Jun 19 2020 View more View Less

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