The lubrication of bone joints is a subject of ongoing m research. Two bones con

Question

The lubrication of bone joints is a subject of ongoing m research. Two bones connected at a joint do not touch. The by results in of synovial fluid, swollen joints, and difficuh bones, resulting in painful motion The frictionall force you have drawn is not tangent to the two surfaces in contact The horizontal force Fb would "otate femur head clockwise ite hip socket but hiclen- ce f ads to prevent eis deckahe 'etation The apparatus is designed such that when >Il the femur head sotates clockwise A sample of data collected at impending slippage of the Based on these data what is the approximate coeficient of static triction p, between the femuar head and the hip socket? Enter your answer sumerically to one significant figure Hints Fh(N) 10 ? , O 200 400 600 800 1000 N) FaIN) OType 8 5 6

Explanation / Answer

Thr coefficient of friction is the ratio of frictional force and driving force,

In the given graph, which is almost linear, the coefficient of friction is

Coeff = 2/200 = 0.01

Or any any point, 4/400 or 6/600 it is equal to 0.01

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